Home / 725,158.66-1,000,736.76-398,469.01

Finding the Fourth Proportional to 725,158.66, 1,000,736.76 and 398,469.01

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Solution

The fourth proportional to 725,158.66, 1,000,736.76 and 398,469.01 is: 549,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,158.66 : 1,000,736.76 = 398,469.01 : x
  2. Step 2: Convert to fraction form
    725,158.66/1,000,736.76 = 398,469.01/x
  3. Step 3: Cross multiply
    725,158.66x = 1,000,736.76 × 398,469.01
  4. Step 4: Simplify right side
    725,158.66x = 398,762,586,027.81
  5. Step 5: Solve for x
    x = 398,762,586,027.81/725,158.66
  6. Step 6: Final answer
    x = 549,897.02

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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.