Home / 898,399.20-1,347,598.80-426,007.20

Finding the Fourth Proportional to 898,399.20, 1,347,598.80 and 426,007.20

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Solution

The fourth proportional to 898,399.20, 1,347,598.80 and 426,007.20 is: 639,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,399.20 : 1,347,598.80 = 426,007.20 : x
  2. Step 2: Convert to fraction form
    898,399.20/1,347,598.80 = 426,007.20/x
  3. Step 3: Cross multiply
    898,399.20x = 1,347,598.80 × 426,007.20
  4. Step 4: Simplify right side
    898,399.20x = 574,086,791,511.36
  5. Step 5: Solve for x
    x = 574,086,791,511.36/898,399.20
  6. Step 6: Final answer
    x = 639,010.80

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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.