Home / 719,045.80-992,288.58-396,767.92

Finding the Fourth Proportional to 719,045.80, 992,288.58 and 396,767.92

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Solution

The fourth proportional to 719,045.80, 992,288.58 and 396,767.92 is: 547,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,045.80 : 992,288.58 = 396,767.92 : x
  2. Step 2: Convert to fraction form
    719,045.80/992,288.58 = 396,767.92/x
  3. Step 3: Cross multiply
    719,045.80x = 992,288.58 × 396,767.92
  4. Step 4: Simplify right side
    719,045.80x = 393,708,275,926.35
  5. Step 5: Solve for x
    x = 393,708,275,926.35/719,045.80
  6. Step 6: Final answer
    x = 547,542.70

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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.