Home / 1,275,118-1,913,049.12-476,215.78

Finding the Fourth Proportional to 1,275,118, 1,913,049.12 and 476,215.78

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Solution

The fourth proportional to 1,275,118, 1,913,049.12 and 476,215.78 is: 714,462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,118 : 1,913,049.12 = 476,215.78 : x
  2. Step 2: Convert to fraction form
    1,275,118/1,913,049.12 = 476,215.78/x
  3. Step 3: Cross multiply
    1,275,118x = 1,913,049.12 × 476,215.78
  4. Step 4: Simplify right side
    1,275,118x = 911,024,178,859.11
  5. Step 5: Solve for x
    x = 911,024,178,859.11/1,275,118
  6. Step 6: Final answer
    x = 714,462.64

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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.