Home / 1,931,745.12-2,896,961.52-669,278.04

Finding the Fourth Proportional to 1,931,745.12, 2,896,961.52 and 669,278.04

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Solution

The fourth proportional to 1,931,745.12, 2,896,961.52 and 669,278.04 is: 1,003,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,745.12 : 2,896,961.52 = 669,278.04 : x
  2. Step 2: Convert to fraction form
    1,931,745.12/2,896,961.52 = 669,278.04/x
  3. Step 3: Cross multiply
    1,931,745.12x = 2,896,961.52 × 669,278.04
  4. Step 4: Simplify right side
    1,931,745.12x = 1,938,872,728,061.02
  5. Step 5: Solve for x
    x = 1,938,872,728,061.02/1,931,745.12
  6. Step 6: Final answer
    x = 1,003,689.72

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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.