Home / 877,367.82-1,210,745.26-490,186.20

Finding the Fourth Proportional to 877,367.82, 1,210,745.26 and 490,186.20

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Solution

The fourth proportional to 877,367.82, 1,210,745.26 and 490,186.20 is: 676,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,367.82 : 1,210,745.26 = 490,186.20 : x
  2. Step 2: Convert to fraction form
    877,367.82/1,210,745.26 = 490,186.20/x
  3. Step 3: Cross multiply
    877,367.82x = 1,210,745.26 × 490,186.20
  4. Step 4: Simplify right side
    877,367.82x = 593,490,618,167.41
  5. Step 5: Solve for x
    x = 593,490,618,167.41/877,367.82
  6. Step 6: Final answer
    x = 676,444.48

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.