Home / 996,680.10-1,495,020.15-660,100.80

Finding the Fourth Proportional to 996,680.10, 1,495,020.15 and 660,100.80

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Solution

The fourth proportional to 996,680.10, 1,495,020.15 and 660,100.80 is: 990,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,680.10 : 1,495,020.15 = 660,100.80 : x
  2. Step 2: Convert to fraction form
    996,680.10/1,495,020.15 = 660,100.80/x
  3. Step 3: Cross multiply
    996,680.10x = 1,495,020.15 × 660,100.80
  4. Step 4: Simplify right side
    996,680.10x = 986,863,997,031.12
  5. Step 5: Solve for x
    x = 986,863,997,031.12/996,680.10
  6. Step 6: Final answer
    x = 990,151.20

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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.