Home / 520,007.20-717,943.44-424,742.56

Finding the Fourth Proportional to 520,007.20, 717,943.44 and 424,742.56

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Solution

The fourth proportional to 520,007.20, 717,943.44 and 424,742.56 is: 586,417.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,007.20 : 717,943.44 = 424,742.56 : x
  2. Step 2: Convert to fraction form
    520,007.20/717,943.44 = 424,742.56/x
  3. Step 3: Cross multiply
    520,007.20x = 717,943.44 × 424,742.56
  4. Step 4: Simplify right side
    520,007.20x = 304,941,134,640.81
  5. Step 5: Solve for x
    x = 304,941,134,640.81/520,007.20
  6. Step 6: Final answer
    x = 586,417.14

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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.