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Finding the Fourth Proportional to 623,700, 935,608.32 and 202,862.88

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Solution

The fourth proportional to 623,700, 935,608.32 and 202,862.88 is: 304,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,700 : 935,608.32 = 202,862.88 : x
  2. Step 2: Convert to fraction form
    623,700/935,608.32 = 202,862.88/x
  3. Step 3: Cross multiply
    623,700x = 935,608.32 × 202,862.88
  4. Step 4: Simplify right side
    623,700x = 189,800,198,347.16
  5. Step 5: Solve for x
    x = 189,800,198,347.16/623,700
  6. Step 6: Final answer
    x = 304,313.29

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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.