Home / 760,220.88-1,139,421.25-354,867.72

Finding the Fourth Proportional to 760,220.88, 1,139,421.25 and 354,867.72

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Solution

The fourth proportional to 760,220.88, 1,139,421.25 and 354,867.72 is: 531,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,220.88 : 1,139,421.25 = 354,867.72 : x
  2. Step 2: Convert to fraction form
    760,220.88/1,139,421.25 = 354,867.72/x
  3. Step 3: Cross multiply
    760,220.88x = 1,139,421.25 × 354,867.72
  4. Step 4: Simplify right side
    760,220.88x = 404,343,821,107.05
  5. Step 5: Solve for x
    x = 404,343,821,107.05/760,220.88
  6. Step 6: Final answer
    x = 531,876.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.