Home / 1,112,431.80-1,668,647.70-270,983.55

Finding the Fourth Proportional to 1,112,431.80, 1,668,647.70 and 270,983.55

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Solution

The fourth proportional to 1,112,431.80, 1,668,647.70 and 270,983.55 is: 406,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,431.80 : 1,668,647.70 = 270,983.55 : x
  2. Step 2: Convert to fraction form
    1,112,431.80/1,668,647.70 = 270,983.55/x
  3. Step 3: Cross multiply
    1,112,431.80x = 1,668,647.70 × 270,983.55
  4. Step 4: Simplify right side
    1,112,431.80x = 452,176,077,445.34
  5. Step 5: Solve for x
    x = 452,176,077,445.34/1,112,431.80
  6. Step 6: Final answer
    x = 406,475.33

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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.