Home / 820,074.17-1,131,702.84-457,498.03

Finding the Fourth Proportional to 820,074.17, 1,131,702.84 and 457,498.03

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Solution

The fourth proportional to 820,074.17, 1,131,702.84 and 457,498.03 is: 631,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,074.17 : 1,131,702.84 = 457,498.03 : x
  2. Step 2: Convert to fraction form
    820,074.17/1,131,702.84 = 457,498.03/x
  3. Step 3: Cross multiply
    820,074.17x = 1,131,702.84 × 457,498.03
  4. Step 4: Simplify right side
    820,074.17x = 517,751,818,511.68
  5. Step 5: Solve for x
    x = 517,751,818,511.68/820,074.17
  6. Step 6: Final answer
    x = 631,347.55

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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.