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Finding the Fourth Proportional to 598,522.40, 825,384.80 and 402,730.08

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Solution

The fourth proportional to 598,522.40, 825,384.80 and 402,730.08 is: 555,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,522.40 : 825,384.80 = 402,730.08 : x
  2. Step 2: Convert to fraction form
    598,522.40/825,384.80 = 402,730.08/x
  3. Step 3: Cross multiply
    598,522.40x = 825,384.80 × 402,730.08
  4. Step 4: Simplify right side
    598,522.40x = 332,407,286,534.78
  5. Step 5: Solve for x
    x = 332,407,286,534.78/598,522.40
  6. Step 6: Final answer
    x = 555,379.86

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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.