Home / 761,175.24-1,050,418.98-421,636.20

Finding the Fourth Proportional to 761,175.24, 1,050,418.98 and 421,636.20

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Solution

The fourth proportional to 761,175.24, 1,050,418.98 and 421,636.20 is: 581,856.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,175.24 : 1,050,418.98 = 421,636.20 : x
  2. Step 2: Convert to fraction form
    761,175.24/1,050,418.98 = 421,636.20/x
  3. Step 3: Cross multiply
    761,175.24x = 1,050,418.98 × 421,636.20
  4. Step 4: Simplify right side
    761,175.24x = 442,894,667,135.08
  5. Step 5: Solve for x
    x = 442,894,667,135.08/761,175.24
  6. Step 6: Final answer
    x = 581,856.38

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Double scale
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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.