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Finding the Fourth Proportional to 646,437.04, 969,331.12 and 376,652.36

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Solution

The fourth proportional to 646,437.04, 969,331.12 and 376,652.36 is: 564,789.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,437.04 : 969,331.12 = 376,652.36 : x
  2. Step 2: Convert to fraction form
    646,437.04/969,331.12 = 376,652.36/x
  3. Step 3: Cross multiply
    646,437.04x = 969,331.12 × 376,652.36
  4. Step 4: Simplify right side
    646,437.04x = 365,100,855,451.14
  5. Step 5: Solve for x
    x = 365,100,855,451.14/646,437.04
  6. Step 6: Final answer
    x = 564,789.51

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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.