Home / 783,631.80-1,175,447.70-547,702.20

Finding the Fourth Proportional to 783,631.80, 1,175,447.70 and 547,702.20

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Solution

The fourth proportional to 783,631.80, 1,175,447.70 and 547,702.20 is: 821,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,631.80 : 1,175,447.70 = 547,702.20 : x
  2. Step 2: Convert to fraction form
    783,631.80/1,175,447.70 = 547,702.20/x
  3. Step 3: Cross multiply
    783,631.80x = 1,175,447.70 × 547,702.20
  4. Step 4: Simplify right side
    783,631.80x = 643,795,291,274.94
  5. Step 5: Solve for x
    x = 643,795,291,274.94/783,631.80
  6. Step 6: Final answer
    x = 821,553.30

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Double scale
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Similar ratio
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1.5x scale

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.