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Finding the Fourth Proportional to 520,028.70, 717,973.11 and 424,764.06

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Solution

The fourth proportional to 520,028.70, 717,973.11 and 424,764.06 is: 586,446.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,028.70 : 717,973.11 = 424,764.06 : x
  2. Step 2: Convert to fraction form
    520,028.70/717,973.11 = 424,764.06/x
  3. Step 3: Cross multiply
    520,028.70x = 717,973.11 × 424,764.06
  4. Step 4: Simplify right side
    520,028.70x = 304,969,173,174.43
  5. Step 5: Solve for x
    x = 304,969,173,174.43/520,028.70
  6. Step 6: Final answer
    x = 586,446.81

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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.