Home / 744,038.27-1,115,789.79-257,588.32

Finding the Fourth Proportional to 744,038.27, 1,115,789.79 and 257,588.32

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Solution

The fourth proportional to 744,038.27, 1,115,789.79 and 257,588.32 is: 386,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,038.27 : 1,115,789.79 = 257,588.32 : x
  2. Step 2: Convert to fraction form
    744,038.27/1,115,789.79 = 257,588.32/x
  3. Step 3: Cross multiply
    744,038.27x = 1,115,789.79 × 257,588.32
  4. Step 4: Simplify right side
    744,038.27x = 287,414,417,479.25
  5. Step 5: Solve for x
    x = 287,414,417,479.25/744,038.27
  6. Step 6: Final answer
    x = 386,289.83

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Double scale
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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.