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Finding the Fourth Proportional to 520,027.20, 717,971.04 and 424,762.56

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Solution

The fourth proportional to 520,027.20, 717,971.04 and 424,762.56 is: 586,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,027.20 : 717,971.04 = 424,762.56 : x
  2. Step 2: Convert to fraction form
    520,027.20/717,971.04 = 424,762.56/x
  3. Step 3: Cross multiply
    520,027.20x = 717,971.04 × 424,762.56
  4. Step 4: Simplify right side
    520,027.20x = 304,967,216,956.26
  5. Step 5: Solve for x
    x = 304,967,216,956.26/520,027.20
  6. Step 6: Final answer
    x = 586,444.74

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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.