Home / 1,097,679.80-1,646,519.70-387,702.20

Finding the Fourth Proportional to 1,097,679.80, 1,646,519.70 and 387,702.20

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Solution

The fourth proportional to 1,097,679.80, 1,646,519.70 and 387,702.20 is: 581,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,679.80 : 1,646,519.70 = 387,702.20 : x
  2. Step 2: Convert to fraction form
    1,097,679.80/1,646,519.70 = 387,702.20/x
  3. Step 3: Cross multiply
    1,097,679.80x = 1,646,519.70 × 387,702.20
  4. Step 4: Simplify right side
    1,097,679.80x = 638,359,310,033.34
  5. Step 5: Solve for x
    x = 638,359,310,033.34/1,097,679.80
  6. Step 6: Final answer
    x = 581,553.30

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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.