Home / 724,585.56-999,959.28-402,295.68

Finding the Fourth Proportional to 724,585.56, 999,959.28 and 402,295.68

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Solution

The fourth proportional to 724,585.56, 999,959.28 and 402,295.68 is: 555,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,585.56 : 999,959.28 = 402,295.68 : x
  2. Step 2: Convert to fraction form
    724,585.56/999,959.28 = 402,295.68/x
  3. Step 3: Cross multiply
    724,585.56x = 999,959.28 × 402,295.68
  4. Step 4: Simplify right side
    724,585.56x = 402,279,298,519.91
  5. Step 5: Solve for x
    x = 402,279,298,519.91/724,585.56
  6. Step 6: Final answer
    x = 555,185.36

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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.