Home / 834,432.39-1,151,707.28-490,308.75

Finding the Fourth Proportional to 834,432.39, 1,151,707.28 and 490,308.75

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Solution

The fourth proportional to 834,432.39, 1,151,707.28 and 490,308.75 is: 676,738.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,432.39 : 1,151,707.28 = 490,308.75 : x
  2. Step 2: Convert to fraction form
    834,432.39/1,151,707.28 = 490,308.75/x
  3. Step 3: Cross multiply
    834,432.39x = 1,151,707.28 × 490,308.75
  4. Step 4: Simplify right side
    834,432.39x = 564,692,154,371.16
  5. Step 5: Solve for x
    x = 564,692,154,371.16/834,432.39
  6. Step 6: Final answer
    x = 676,738.06

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Double scale
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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.