Home / 437,521.20-656,281.80-326,929.20

Finding the Fourth Proportional to 437,521.20, 656,281.80 and 326,929.20

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Solution

The fourth proportional to 437,521.20, 656,281.80 and 326,929.20 is: 490,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,521.20 : 656,281.80 = 326,929.20 : x
  2. Step 2: Convert to fraction form
    437,521.20/656,281.80 = 326,929.20/x
  3. Step 3: Cross multiply
    437,521.20x = 656,281.80 × 326,929.20
  4. Step 4: Simplify right side
    437,521.20x = 214,557,683,848.56
  5. Step 5: Solve for x
    x = 214,557,683,848.56/437,521.20
  6. Step 6: Final answer
    x = 490,393.80

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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.