Home / 847,120.40-1,169,131.48-484,493.93

Finding the Fourth Proportional to 847,120.40, 1,169,131.48 and 484,493.93

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Solution

The fourth proportional to 847,120.40, 1,169,131.48 and 484,493.93 is: 668,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,120.40 : 1,169,131.48 = 484,493.93 : x
  2. Step 2: Convert to fraction form
    847,120.40/1,169,131.48 = 484,493.93/x
  3. Step 3: Cross multiply
    847,120.40x = 1,169,131.48 × 484,493.93
  4. Step 4: Simplify right side
    847,120.40x = 566,437,098,375.02
  5. Step 5: Solve for x
    x = 566,437,098,375.02/847,120.40
  6. Step 6: Final answer
    x = 668,661.86

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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.