Home / 1,314,492.30-1,971,738.45-747,621.90

Finding the Fourth Proportional to 1,314,492.30, 1,971,738.45 and 747,621.90

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Solution

The fourth proportional to 1,314,492.30, 1,971,738.45 and 747,621.90 is: 1,121,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,492.30 : 1,971,738.45 = 747,621.90 : x
  2. Step 2: Convert to fraction form
    1,314,492.30/1,971,738.45 = 747,621.90/x
  3. Step 3: Cross multiply
    1,314,492.30x = 1,971,738.45 × 747,621.90
  4. Step 4: Simplify right side
    1,314,492.30x = 1,474,114,846,292.06
  5. Step 5: Solve for x
    x = 1,474,114,846,292.06/1,314,492.30
  6. Step 6: Final answer
    x = 1,121,432.85

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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.