Home / 438,311.60-658,081.80-272,423.60

Finding the Fourth Proportional to 438,311.60, 658,081.80 and 272,423.60

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Solution

The fourth proportional to 438,311.60, 658,081.80 and 272,423.60 is: 409,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,311.60 : 658,081.80 = 272,423.60 : x
  2. Step 2: Convert to fraction form
    438,311.60/658,081.80 = 272,423.60/x
  3. Step 3: Cross multiply
    438,311.60x = 658,081.80 × 272,423.60
  4. Step 4: Simplify right side
    438,311.60x = 179,277,013,050.48
  5. Step 5: Solve for x
    x = 179,277,013,050.48/438,311.60
  6. Step 6: Final answer
    x = 409,017.27

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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.