Home / 872,189.40-1,308,327.30-452,285.40

Finding the Fourth Proportional to 872,189.40, 1,308,327.30 and 452,285.40

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Solution

The fourth proportional to 872,189.40, 1,308,327.30 and 452,285.40 is: 678,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,189.40 : 1,308,327.30 = 452,285.40 : x
  2. Step 2: Convert to fraction form
    872,189.40/1,308,327.30 = 452,285.40/x
  3. Step 3: Cross multiply
    872,189.40x = 1,308,327.30 × 452,285.40
  4. Step 4: Simplify right side
    872,189.40x = 591,737,336,211.42
  5. Step 5: Solve for x
    x = 591,737,336,211.42/872,189.40
  6. Step 6: Final answer
    x = 678,450.50

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Double scale
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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.