Home / 831,116.09-1,146,890.77-482,229.56

Finding the Fourth Proportional to 831,116.09, 1,146,890.77 and 482,229.56

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Solution

The fourth proportional to 831,116.09, 1,146,890.77 and 482,229.56 is: 665,448.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,116.09 : 1,146,890.77 = 482,229.56 : x
  2. Step 2: Convert to fraction form
    831,116.09/1,146,890.77 = 482,229.56/x
  3. Step 3: Cross multiply
    831,116.09x = 1,146,890.77 × 482,229.56
  4. Step 4: Simplify right side
    831,116.09x = 553,064,633,046.81
  5. Step 5: Solve for x
    x = 553,064,633,046.81/831,116.09
  6. Step 6: Final answer
    x = 665,448.12

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.