Home / 857,567.10-1,285,429.05-324,882.30

Finding the Fourth Proportional to 857,567.10, 1,285,429.05 and 324,882.30

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Solution

The fourth proportional to 857,567.10, 1,285,429.05 and 324,882.30 is: 486,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,567.10 : 1,285,429.05 = 324,882.30 : x
  2. Step 2: Convert to fraction form
    857,567.10/1,285,429.05 = 324,882.30/x
  3. Step 3: Cross multiply
    857,567.10x = 1,285,429.05 × 324,882.30
  4. Step 4: Simplify right side
    857,567.10x = 417,613,146,250.82
  5. Step 5: Solve for x
    x = 417,613,146,250.82/857,567.10
  6. Step 6: Final answer
    x = 486,974.31

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Double scale
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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.