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Finding the Fourth Proportional to 721,246.12, 994,984.42 and 466,679.40

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Solution

The fourth proportional to 721,246.12, 994,984.42 and 466,679.40 is: 643,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,246.12 : 994,984.42 = 466,679.40 : x
  2. Step 2: Convert to fraction form
    721,246.12/994,984.42 = 466,679.40/x
  3. Step 3: Cross multiply
    721,246.12x = 994,984.42 × 466,679.40
  4. Step 4: Simplify right side
    721,246.12x = 464,338,732,134.95
  5. Step 5: Solve for x
    x = 464,338,732,134.95/721,246.12
  6. Step 6: Final answer
    x = 643,800.67

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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.