Home / 1,437,082.40-2,156,401.20-638,487.20

Finding the Fourth Proportional to 1,437,082.40, 2,156,401.20 and 638,487.20

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Solution

The fourth proportional to 1,437,082.40, 2,156,401.20 and 638,487.20 is: 958,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,082.40 : 2,156,401.20 = 638,487.20 : x
  2. Step 2: Convert to fraction form
    1,437,082.40/2,156,401.20 = 638,487.20/x
  3. Step 3: Cross multiply
    1,437,082.40x = 2,156,401.20 × 638,487.20
  4. Step 4: Simplify right side
    1,437,082.40x = 1,376,834,564,264.64
  5. Step 5: Solve for x
    x = 1,376,834,564,264.64/1,437,082.40
  6. Step 6: Final answer
    x = 958,076.28

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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.