Home / 656,627.02-905,990.96-398,498.26

Finding the Fourth Proportional to 656,627.02, 905,990.96 and 398,498.26

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Solution

The fourth proportional to 656,627.02, 905,990.96 and 398,498.26 is: 549,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,627.02 : 905,990.96 = 398,498.26 : x
  2. Step 2: Convert to fraction form
    656,627.02/905,990.96 = 398,498.26/x
  3. Step 3: Cross multiply
    656,627.02x = 905,990.96 × 398,498.26
  4. Step 4: Simplify right side
    656,627.02x = 361,035,821,135.73
  5. Step 5: Solve for x
    x = 361,035,821,135.73/656,627.02
  6. Step 6: Final answer
    x = 549,833.94

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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.