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Finding the Fourth Proportional to 488,705.40, 732,839.40 and 189,086.40

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Solution

The fourth proportional to 488,705.40, 732,839.40 and 189,086.40 is: 283,544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,705.40 : 732,839.40 = 189,086.40 : x
  2. Step 2: Convert to fraction form
    488,705.40/732,839.40 = 189,086.40/x
  3. Step 3: Cross multiply
    488,705.40x = 732,839.40 × 189,086.40
  4. Step 4: Simplify right side
    488,705.40x = 138,569,963,924.16
  5. Step 5: Solve for x
    x = 138,569,963,924.16/488,705.40
  6. Step 6: Final answer
    x = 283,544.98

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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.