Home / 658,629.18-908,858.06-400,470.27

Finding the Fourth Proportional to 658,629.18, 908,858.06 and 400,470.27

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Solution

The fourth proportional to 658,629.18, 908,858.06 and 400,470.27 is: 552,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,629.18 : 908,858.06 = 400,470.27 : x
  2. Step 2: Convert to fraction form
    658,629.18/908,858.06 = 400,470.27/x
  3. Step 3: Cross multiply
    658,629.18x = 908,858.06 × 400,470.27
  4. Step 4: Simplify right side
    658,629.18x = 363,970,630,677.53
  5. Step 5: Solve for x
    x = 363,970,630,677.53/658,629.18
  6. Step 6: Final answer
    x = 552,618.44

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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.