Home / 721,866,490.38-1,080,934,894.44-498,208,320.54

Finding the Fourth Proportional to 721,866,490.38, 1,080,934,894.44 and 498,208,320.54

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Solution

The fourth proportional to 721,866,490.38, 1,080,934,894.44 and 498,208,320.54 is: 746,025,429.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,866,490.38 : 1,080,934,894.44 = 498,208,320.54 : x
  2. Step 2: Convert to fraction form
    721,866,490.38/1,080,934,894.44 = 498,208,320.54/x
  3. Step 3: Cross multiply
    721,866,490.38x = 1,080,934,894.44 × 498,208,320.54
  4. Step 4: Simplify right side
    721,866,490.38x = 538,530,758,372,034,624
  5. Step 5: Solve for x
    x = 538,530,758,372,034,624/721,866,490.38
  6. Step 6: Final answer
    x = 746,025,429.28

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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.