Home / 742,789.46-1,025,060.74-403,257.72

Finding the Fourth Proportional to 742,789.46, 1,025,060.74 and 403,257.72

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Solution

The fourth proportional to 742,789.46, 1,025,060.74 and 403,257.72 is: 556,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,789.46 : 1,025,060.74 = 403,257.72 : x
  2. Step 2: Convert to fraction form
    742,789.46/1,025,060.74 = 403,257.72/x
  3. Step 3: Cross multiply
    742,789.46x = 1,025,060.74 × 403,257.72
  4. Step 4: Simplify right side
    742,789.46x = 413,363,656,873.91
  5. Step 5: Solve for x
    x = 413,363,656,873.91/742,789.46
  6. Step 6: Final answer
    x = 556,501.78

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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.