Home / 1,294,526.50-1,786,470.05-721,505.16

Finding the Fourth Proportional to 1,294,526.50, 1,786,470.05 and 721,505.16

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Solution

The fourth proportional to 1,294,526.50, 1,786,470.05 and 721,505.16 is: 995,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,526.50 : 1,786,470.05 = 721,505.16 : x
  2. Step 2: Convert to fraction form
    1,294,526.50/1,786,470.05 = 721,505.16/x
  3. Step 3: Cross multiply
    1,294,526.50x = 1,786,470.05 × 721,505.16
  4. Step 4: Simplify right side
    1,294,526.50x = 1,288,947,361,064.22
  5. Step 5: Solve for x
    x = 1,288,947,361,064.22/1,294,526.50
  6. Step 6: Final answer
    x = 995,690.21

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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.