Home / 868,140.08-1,198,005.48-480,939.70

Finding the Fourth Proportional to 868,140.08, 1,198,005.48 and 480,939.70

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Solution

The fourth proportional to 868,140.08, 1,198,005.48 and 480,939.70 is: 663,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,140.08 : 1,198,005.48 = 480,939.70 : x
  2. Step 2: Convert to fraction form
    868,140.08/1,198,005.48 = 480,939.70/x
  3. Step 3: Cross multiply
    868,140.08x = 1,198,005.48 × 480,939.70
  4. Step 4: Simplify right side
    868,140.08x = 576,168,396,149.56
  5. Step 5: Solve for x
    x = 576,168,396,149.56/868,140.08
  6. Step 6: Final answer
    x = 663,681.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.