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Finding the Fourth Proportional to 623,578.80, 935,643.60 and 303,553.20

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Solution

The fourth proportional to 623,578.80, 935,643.60 and 303,553.20 is: 455,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,578.80 : 935,643.60 = 303,553.20 : x
  2. Step 2: Convert to fraction form
    623,578.80/935,643.60 = 303,553.20/x
  3. Step 3: Cross multiply
    623,578.80x = 935,643.60 × 303,553.20
  4. Step 4: Simplify right side
    623,578.80x = 284,017,608,839.52
  5. Step 5: Solve for x
    x = 284,017,608,839.52/623,578.80
  6. Step 6: Final answer
    x = 455,463.86

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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.