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Finding the Fourth Proportional to 577,434.60, 865,115.10 and 494,490.60

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Solution

The fourth proportional to 577,434.60, 865,115.10 and 494,490.60 is: 740,848.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,434.60 : 865,115.10 = 494,490.60 : x
  2. Step 2: Convert to fraction form
    577,434.60/865,115.10 = 494,490.60/x
  3. Step 3: Cross multiply
    577,434.60x = 865,115.10 × 494,490.60
  4. Step 4: Simplify right side
    577,434.60x = 427,791,284,868.06
  5. Step 5: Solve for x
    x = 427,791,284,868.06/577,434.60
  6. Step 6: Final answer
    x = 740,848.03

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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.