Home / 1,015,229.28-1,521,818.58-636,415.53

Finding the Fourth Proportional to 1,015,229.28, 1,521,818.58 and 636,415.53

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Solution

The fourth proportional to 1,015,229.28, 1,521,818.58 and 636,415.53 is: 953,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,229.28 : 1,521,818.58 = 636,415.53 : x
  2. Step 2: Convert to fraction form
    1,015,229.28/1,521,818.58 = 636,415.53/x
  3. Step 3: Cross multiply
    1,015,229.28x = 1,521,818.58 × 636,415.53
  4. Step 4: Simplify right side
    1,015,229.28x = 968,508,978,154.55
  5. Step 5: Solve for x
    x = 968,508,978,154.55/1,015,229.28
  6. Step 6: Final answer
    x = 953,980.54

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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.