Home / 766,258.28-1,057,360.74-426,758.12

Finding the Fourth Proportional to 766,258.28, 1,057,360.74 and 426,758.12

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Solution

The fourth proportional to 766,258.28, 1,057,360.74 and 426,758.12 is: 588,884.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,258.28 : 1,057,360.74 = 426,758.12 : x
  2. Step 2: Convert to fraction form
    766,258.28/1,057,360.74 = 426,758.12/x
  3. Step 3: Cross multiply
    766,258.28x = 1,057,360.74 × 426,758.12
  4. Step 4: Simplify right side
    766,258.28x = 451,237,281,564.21
  5. Step 5: Solve for x
    x = 451,237,281,564.21/766,258.28
  6. Step 6: Final answer
    x = 588,884.05

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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.