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Finding the Fourth Proportional to 659,435.10, 988,861.05 and 304,266.30

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Solution

The fourth proportional to 659,435.10, 988,861.05 and 304,266.30 is: 456,264.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,435.10 : 988,861.05 = 304,266.30 : x
  2. Step 2: Convert to fraction form
    659,435.10/988,861.05 = 304,266.30/x
  3. Step 3: Cross multiply
    659,435.10x = 988,861.05 × 304,266.30
  4. Step 4: Simplify right side
    659,435.10x = 300,877,092,897.62
  5. Step 5: Solve for x
    x = 300,877,092,897.62/659,435.10
  6. Step 6: Final answer
    x = 456,264.90

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1.5x scale

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.