Home / 840,818.20-1,160,354.74-478,294.60

Finding the Fourth Proportional to 840,818.20, 1,160,354.74 and 478,294.60

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Solution

The fourth proportional to 840,818.20, 1,160,354.74 and 478,294.60 is: 660,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,818.20 : 1,160,354.74 = 478,294.60 : x
  2. Step 2: Convert to fraction form
    840,818.20/1,160,354.74 = 478,294.60/x
  3. Step 3: Cross multiply
    840,818.20x = 1,160,354.74 × 478,294.60
  4. Step 4: Simplify right side
    840,818.20x = 554,991,406,226.40
  5. Step 5: Solve for x
    x = 554,991,406,226.40/840,818.20
  6. Step 6: Final answer
    x = 660,061.12

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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.