Home / 1,142,308.80-1,713,463.20-343,713.60

Finding the Fourth Proportional to 1,142,308.80, 1,713,463.20 and 343,713.60

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Solution

The fourth proportional to 1,142,308.80, 1,713,463.20 and 343,713.60 is: 515,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,308.80 : 1,713,463.20 = 343,713.60 : x
  2. Step 2: Convert to fraction form
    1,142,308.80/1,713,463.20 = 343,713.60/x
  3. Step 3: Cross multiply
    1,142,308.80x = 1,713,463.20 × 343,713.60
  4. Step 4: Simplify right side
    1,142,308.80x = 588,940,604,939.52
  5. Step 5: Solve for x
    x = 588,940,604,939.52/1,142,308.80
  6. Step 6: Final answer
    x = 515,570.40

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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.