Home / 855,349.70-1,283,024.55-656,284.10

Finding the Fourth Proportional to 855,349.70, 1,283,024.55 and 656,284.10

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Solution

The fourth proportional to 855,349.70, 1,283,024.55 and 656,284.10 is: 984,426.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,349.70 : 1,283,024.55 = 656,284.10 : x
  2. Step 2: Convert to fraction form
    855,349.70/1,283,024.55 = 656,284.10/x
  3. Step 3: Cross multiply
    855,349.70x = 1,283,024.55 × 656,284.10
  4. Step 4: Simplify right side
    855,349.70x = 842,028,612,074.66
  5. Step 5: Solve for x
    x = 842,028,612,074.66/855,349.70
  6. Step 6: Final answer
    x = 984,426.15

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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.