Home / 1,187,564.10-1,781,346.15-288,998.70

Finding the Fourth Proportional to 1,187,564.10, 1,781,346.15 and 288,998.70

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Solution

The fourth proportional to 1,187,564.10, 1,781,346.15 and 288,998.70 is: 433,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,564.10 : 1,781,346.15 = 288,998.70 : x
  2. Step 2: Convert to fraction form
    1,187,564.10/1,781,346.15 = 288,998.70/x
  3. Step 3: Cross multiply
    1,187,564.10x = 1,781,346.15 × 288,998.70
  4. Step 4: Simplify right side
    1,187,564.10x = 514,806,721,600.01
  5. Step 5: Solve for x
    x = 514,806,721,600.01/1,187,564.10
  6. Step 6: Final answer
    x = 433,498.05

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Similar ratio
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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.