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Finding the Fourth Proportional to 659,648.72, 988,154.04 and 304,176.08

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Solution

The fourth proportional to 659,648.72, 988,154.04 and 304,176.08 is: 455,655.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,648.72 : 988,154.04 = 304,176.08 : x
  2. Step 2: Convert to fraction form
    659,648.72/988,154.04 = 304,176.08/x
  3. Step 3: Cross multiply
    659,648.72x = 988,154.04 × 304,176.08
  4. Step 4: Simplify right side
    659,648.72x = 300,572,822,323.36
  5. Step 5: Solve for x
    x = 300,572,822,323.36/659,648.72
  6. Step 6: Final answer
    x = 455,655.89

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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.