Home / 721,245.12-994,983.04-466,678.40

Finding the Fourth Proportional to 721,245.12, 994,983.04 and 466,678.40

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Solution

The fourth proportional to 721,245.12, 994,983.04 and 466,678.40 is: 643,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,245.12 : 994,983.04 = 466,678.40 : x
  2. Step 2: Convert to fraction form
    721,245.12/994,983.04 = 466,678.40/x
  3. Step 3: Cross multiply
    721,245.12x = 994,983.04 × 466,678.40
  4. Step 4: Simplify right side
    721,245.12x = 464,337,093,134.34
  5. Step 5: Solve for x
    x = 464,337,093,134.34/721,245.12
  6. Step 6: Final answer
    x = 643,799.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.