Home / 1,369,548.72-1,890,017.28-749,391.12

Finding the Fourth Proportional to 1,369,548.72, 1,890,017.28 and 749,391.12

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Solution

The fourth proportional to 1,369,548.72, 1,890,017.28 and 749,391.12 is: 1,034,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,548.72 : 1,890,017.28 = 749,391.12 : x
  2. Step 2: Convert to fraction form
    1,369,548.72/1,890,017.28 = 749,391.12/x
  3. Step 3: Cross multiply
    1,369,548.72x = 1,890,017.28 × 749,391.12
  4. Step 4: Simplify right side
    1,369,548.72x = 1,416,362,166,278.55
  5. Step 5: Solve for x
    x = 1,416,362,166,278.55/1,369,548.72
  6. Step 6: Final answer
    x = 1,034,181.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.