Home / 761,166.38-1,141,909.89-287,841.26

Finding the Fourth Proportional to 761,166.38, 1,141,909.89 and 287,841.26

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Solution

The fourth proportional to 761,166.38, 1,141,909.89 and 287,841.26 is: 431,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,166.38 : 1,141,909.89 = 287,841.26 : x
  2. Step 2: Convert to fraction form
    761,166.38/1,141,909.89 = 287,841.26/x
  3. Step 3: Cross multiply
    761,166.38x = 1,141,909.89 × 287,841.26
  4. Step 4: Simplify right side
    761,166.38x = 328,688,781,544.06
  5. Step 5: Solve for x
    x = 328,688,781,544.06/761,166.38
  6. Step 6: Final answer
    x = 431,822.52

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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.