Home / 1,439,233.28-2,158,472.96-428,083.28

Finding the Fourth Proportional to 1,439,233.28, 2,158,472.96 and 428,083.28

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Solution

The fourth proportional to 1,439,233.28, 2,158,472.96 and 428,083.28 is: 642,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,233.28 : 2,158,472.96 = 428,083.28 : x
  2. Step 2: Convert to fraction form
    1,439,233.28/2,158,472.96 = 428,083.28/x
  3. Step 3: Cross multiply
    1,439,233.28x = 2,158,472.96 × 428,083.28
  4. Step 4: Simplify right side
    1,439,233.28x = 924,006,184,508.11
  5. Step 5: Solve for x
    x = 924,006,184,508.11/1,439,233.28
  6. Step 6: Final answer
    x = 642,012.80

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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.