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Finding the Fourth Proportional to 642,349.60, 962,523.60 and 242,772.40

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Solution

The fourth proportional to 642,349.60, 962,523.60 and 242,772.40 is: 363,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,349.60 : 962,523.60 = 242,772.40 : x
  2. Step 2: Convert to fraction form
    642,349.60/962,523.60 = 242,772.40/x
  3. Step 3: Cross multiply
    642,349.60x = 962,523.60 × 242,772.40
  4. Step 4: Simplify right side
    642,349.60x = 233,674,164,428.64
  5. Step 5: Solve for x
    x = 233,674,164,428.64/642,349.60
  6. Step 6: Final answer
    x = 363,780.35

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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.