Home / 1,428,805.24-2,143,207.92-431,533.24

Finding the Fourth Proportional to 1,428,805.24, 2,143,207.92 and 431,533.24

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Solution

The fourth proportional to 1,428,805.24, 2,143,207.92 and 431,533.24 is: 647,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,805.24 : 2,143,207.92 = 431,533.24 : x
  2. Step 2: Convert to fraction form
    1,428,805.24/2,143,207.92 = 431,533.24/x
  3. Step 3: Cross multiply
    1,428,805.24x = 2,143,207.92 × 431,533.24
  4. Step 4: Simplify right side
    1,428,805.24x = 924,865,457,711.26
  5. Step 5: Solve for x
    x = 924,865,457,711.26/1,428,805.24
  6. Step 6: Final answer
    x = 647,299.88

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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.