Home / 818,810.75-1,129,963.31-474,850.61

Finding the Fourth Proportional to 818,810.75, 1,129,963.31 and 474,850.61

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Solution

The fourth proportional to 818,810.75, 1,129,963.31 and 474,850.61 is: 655,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,810.75 : 1,129,963.31 = 474,850.61 : x
  2. Step 2: Convert to fraction form
    818,810.75/1,129,963.31 = 474,850.61/x
  3. Step 3: Cross multiply
    818,810.75x = 1,129,963.31 × 474,850.61
  4. Step 4: Simplify right side
    818,810.75x = 536,563,767,031.12
  5. Step 5: Solve for x
    x = 536,563,767,031.12/818,810.75
  6. Step 6: Final answer
    x = 655,296.44

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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.