Home / 813,374.20-1,220,061.30-603,422.20

Finding the Fourth Proportional to 813,374.20, 1,220,061.30 and 603,422.20

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Solution

The fourth proportional to 813,374.20, 1,220,061.30 and 603,422.20 is: 905,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,374.20 : 1,220,061.30 = 603,422.20 : x
  2. Step 2: Convert to fraction form
    813,374.20/1,220,061.30 = 603,422.20/x
  3. Step 3: Cross multiply
    813,374.20x = 1,220,061.30 × 603,422.20
  4. Step 4: Simplify right side
    813,374.20x = 736,212,073,780.86
  5. Step 5: Solve for x
    x = 736,212,073,780.86/813,374.20
  6. Step 6: Final answer
    x = 905,133.30

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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.