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Finding the Fourth Proportional to 688,013.60, 1,029,687.60 and 604,032.80

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Solution

The fourth proportional to 688,013.60, 1,029,687.60 and 604,032.80 is: 904,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,013.60 : 1,029,687.60 = 604,032.80 : x
  2. Step 2: Convert to fraction form
    688,013.60/1,029,687.60 = 604,032.80/x
  3. Step 3: Cross multiply
    688,013.60x = 1,029,687.60 × 604,032.80
  4. Step 4: Simplify right side
    688,013.60x = 621,965,084,153.28
  5. Step 5: Solve for x
    x = 621,965,084,153.28/688,013.60
  6. Step 6: Final answer
    x = 904,001.15

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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.