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Finding the Fourth Proportional to 546,867.60, 820,301.40 and 447,140.40

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Solution

The fourth proportional to 546,867.60, 820,301.40 and 447,140.40 is: 670,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,867.60 : 820,301.40 = 447,140.40 : x
  2. Step 2: Convert to fraction form
    546,867.60/820,301.40 = 447,140.40/x
  3. Step 3: Cross multiply
    546,867.60x = 820,301.40 × 447,140.40
  4. Step 4: Simplify right side
    546,867.60x = 366,789,896,116.56
  5. Step 5: Solve for x
    x = 366,789,896,116.56/546,867.60
  6. Step 6: Final answer
    x = 670,710.60

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Similar ratio
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1.5x scale

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.