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Finding the Fourth Proportional to 666,575.80, 999,863.70 and 292,598.80

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Solution

The fourth proportional to 666,575.80, 999,863.70 and 292,598.80 is: 438,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,575.80 : 999,863.70 = 292,598.80 : x
  2. Step 2: Convert to fraction form
    666,575.80/999,863.70 = 292,598.80/x
  3. Step 3: Cross multiply
    666,575.80x = 999,863.70 × 292,598.80
  4. Step 4: Simplify right side
    666,575.80x = 292,558,918,783.56
  5. Step 5: Solve for x
    x = 292,558,918,783.56/666,575.80
  6. Step 6: Final answer
    x = 438,898.20

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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.