Home / 885,429.05-1,221,739.54-498,190.73

Finding the Fourth Proportional to 885,429.05, 1,221,739.54 and 498,190.73

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Solution

The fourth proportional to 885,429.05, 1,221,739.54 and 498,190.73 is: 687,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,429.05 : 1,221,739.54 = 498,190.73 : x
  2. Step 2: Convert to fraction form
    885,429.05/1,221,739.54 = 498,190.73/x
  3. Step 3: Cross multiply
    885,429.05x = 1,221,739.54 × 498,190.73
  4. Step 4: Simplify right side
    885,429.05x = 608,659,305,948.29
  5. Step 5: Solve for x
    x = 608,659,305,948.29/885,429.05
  6. Step 6: Final answer
    x = 687,417.37

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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.