Home / 398,749.87-598,373.80-265,723.47

Finding the Fourth Proportional to 398,749.87, 598,373.80 and 265,723.47

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Solution

The fourth proportional to 398,749.87, 598,373.80 and 265,723.47 is: 398,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,749.87 : 598,373.80 = 265,723.47 : x
  2. Step 2: Convert to fraction form
    398,749.87/598,373.80 = 265,723.47/x
  3. Step 3: Cross multiply
    398,749.87x = 598,373.80 × 265,723.47
  4. Step 4: Simplify right side
    398,749.87x = 159,001,961,828.78
  5. Step 5: Solve for x
    x = 159,001,961,828.78/398,749.87
  6. Step 6: Final answer
    x = 398,751.13

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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.