Home / 890,743.10-1,336,114.65-780,151.10

Finding the Fourth Proportional to 890,743.10, 1,336,114.65 and 780,151.10

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Solution

The fourth proportional to 890,743.10, 1,336,114.65 and 780,151.10 is: 1,170,226.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,743.10 : 1,336,114.65 = 780,151.10 : x
  2. Step 2: Convert to fraction form
    890,743.10/1,336,114.65 = 780,151.10/x
  3. Step 3: Cross multiply
    890,743.10x = 1,336,114.65 × 780,151.10
  4. Step 4: Simplify right side
    890,743.10x = 1,042,371,313,923.61
  5. Step 5: Solve for x
    x = 1,042,371,313,923.61/890,743.10
  6. Step 6: Final answer
    x = 1,170,226.65

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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.