Home / 840,872.92-1,160,375.34-478,269.40

Finding the Fourth Proportional to 840,872.92, 1,160,375.34 and 478,269.40

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Solution

The fourth proportional to 840,872.92, 1,160,375.34 and 478,269.40 is: 659,995.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,872.92 : 1,160,375.34 = 478,269.40 : x
  2. Step 2: Convert to fraction form
    840,872.92/1,160,375.34 = 478,269.40/x
  3. Step 3: Cross multiply
    840,872.92x = 1,160,375.34 × 478,269.40
  4. Step 4: Simplify right side
    840,872.92x = 554,972,017,636.60
  5. Step 5: Solve for x
    x = 554,972,017,636.60/840,872.92
  6. Step 6: Final answer
    x = 659,995.11

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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.