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Finding the Fourth Proportional to 607,720.20, 910,851.30 and 252,551.40

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Solution

The fourth proportional to 607,720.20, 910,851.30 and 252,551.40 is: 378,524.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,720.20 : 910,851.30 = 252,551.40 : x
  2. Step 2: Convert to fraction form
    607,720.20/910,851.30 = 252,551.40/x
  3. Step 3: Cross multiply
    607,720.20x = 910,851.30 × 252,551.40
  4. Step 4: Simplify right side
    607,720.20x = 230,036,771,006.82
  5. Step 5: Solve for x
    x = 230,036,771,006.82/607,720.20
  6. Step 6: Final answer
    x = 378,524.15

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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.