Home / 876,341.70-1,314,512.55-498,428.10

Finding the Fourth Proportional to 876,341.70, 1,314,512.55 and 498,428.10

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Solution

The fourth proportional to 876,341.70, 1,314,512.55 and 498,428.10 is: 747,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,341.70 : 1,314,512.55 = 498,428.10 : x
  2. Step 2: Convert to fraction form
    876,341.70/1,314,512.55 = 498,428.10/x
  3. Step 3: Cross multiply
    876,341.70x = 1,314,512.55 × 498,428.10
  4. Step 4: Simplify right side
    876,341.70x = 655,189,992,722.66
  5. Step 5: Solve for x
    x = 655,189,992,722.66/876,341.70
  6. Step 6: Final answer
    x = 747,642.15

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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.