Home / 749,027.60-1,123,541.40-646,384.40

Finding the Fourth Proportional to 749,027.60, 1,123,541.40 and 646,384.40

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Solution

The fourth proportional to 749,027.60, 1,123,541.40 and 646,384.40 is: 969,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,027.60 : 1,123,541.40 = 646,384.40 : x
  2. Step 2: Convert to fraction form
    749,027.60/1,123,541.40 = 646,384.40/x
  3. Step 3: Cross multiply
    749,027.60x = 1,123,541.40 × 646,384.40
  4. Step 4: Simplify right side
    749,027.60x = 726,239,633,714.16
  5. Step 5: Solve for x
    x = 726,239,633,714.16/749,027.60
  6. Step 6: Final answer
    x = 969,576.60

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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.