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Finding the Fourth Proportional to 452,549.12, 679,110.04 and 253,000.40

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Solution

The fourth proportional to 452,549.12, 679,110.04 and 253,000.40 is: 379,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,549.12 : 679,110.04 = 253,000.40 : x
  2. Step 2: Convert to fraction form
    452,549.12/679,110.04 = 253,000.40/x
  3. Step 3: Cross multiply
    452,549.12x = 679,110.04 × 253,000.40
  4. Step 4: Simplify right side
    452,549.12x = 171,815,111,081.58
  5. Step 5: Solve for x
    x = 171,815,111,081.58/452,549.12
  6. Step 6: Final answer
    x = 379,660.69

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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.