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Finding the Fourth Proportional to 659,694.72, 989,539.52 and 238,872.16

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Solution

The fourth proportional to 659,694.72, 989,539.52 and 238,872.16 is: 358,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,694.72 : 989,539.52 = 238,872.16 : x
  2. Step 2: Convert to fraction form
    659,694.72/989,539.52 = 238,872.16/x
  3. Step 3: Cross multiply
    659,694.72x = 989,539.52 × 238,872.16
  4. Step 4: Simplify right side
    659,694.72x = 236,373,442,547.76
  5. Step 5: Solve for x
    x = 236,373,442,547.76/659,694.72
  6. Step 6: Final answer
    x = 358,307.31

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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.