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Finding the Fourth Proportional to 532,809.65, 798,525.57 and 398,637.20

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Solution

The fourth proportional to 532,809.65, 798,525.57 and 398,637.20 is: 597,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,809.65 : 798,525.57 = 398,637.20 : x
  2. Step 2: Convert to fraction form
    532,809.65/798,525.57 = 398,637.20/x
  3. Step 3: Cross multiply
    532,809.65x = 798,525.57 × 398,637.20
  4. Step 4: Simplify right side
    532,809.65x = 318,322,000,844.41
  5. Step 5: Solve for x
    x = 318,322,000,844.41/532,809.65
  6. Step 6: Final answer
    x = 597,440.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.