Home / 687,174.56-948,726.24-458,054.72

Finding the Fourth Proportional to 687,174.56, 948,726.24 and 458,054.72

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Solution

The fourth proportional to 687,174.56, 948,726.24 and 458,054.72 is: 632,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,174.56 : 948,726.24 = 458,054.72 : x
  2. Step 2: Convert to fraction form
    687,174.56/948,726.24 = 458,054.72/x
  3. Step 3: Cross multiply
    687,174.56x = 948,726.24 × 458,054.72
  4. Step 4: Simplify right side
    687,174.56x = 434,568,532,219.85
  5. Step 5: Solve for x
    x = 434,568,532,219.85/687,174.56
  6. Step 6: Final answer
    x = 632,399.04

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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.