Home / 745,149.83-1,028,248.14-422,859.93

Finding the Fourth Proportional to 745,149.83, 1,028,248.14 and 422,859.93

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Solution

The fourth proportional to 745,149.83, 1,028,248.14 and 422,859.93 is: 583,513.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,149.83 : 1,028,248.14 = 422,859.93 : x
  2. Step 2: Convert to fraction form
    745,149.83/1,028,248.14 = 422,859.93/x
  3. Step 3: Cross multiply
    745,149.83x = 1,028,248.14 × 422,859.93
  4. Step 4: Simplify right side
    745,149.83x = 434,804,933,043.53
  5. Step 5: Solve for x
    x = 434,804,933,043.53/745,149.83
  6. Step 6: Final answer
    x = 583,513.43

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Double scale
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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.