Home / 756,278.32-1,043,671.08-416,758.72

Finding the Fourth Proportional to 756,278.32, 1,043,671.08 and 416,758.72

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Solution

The fourth proportional to 756,278.32, 1,043,671.08 and 416,758.72 is: 575,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,278.32 : 1,043,671.08 = 416,758.72 : x
  2. Step 2: Convert to fraction form
    756,278.32/1,043,671.08 = 416,758.72/x
  3. Step 3: Cross multiply
    756,278.32x = 1,043,671.08 × 416,758.72
  4. Step 4: Simplify right side
    756,278.32x = 434,959,023,401.82
  5. Step 5: Solve for x
    x = 434,959,023,401.82/756,278.32
  6. Step 6: Final answer
    x = 575,130.89

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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.