Home / 765,043.66-1,147,566.29-285,264.14

Finding the Fourth Proportional to 765,043.66, 1,147,566.29 and 285,264.14

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Solution

The fourth proportional to 765,043.66, 1,147,566.29 and 285,264.14 is: 427,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,043.66 : 1,147,566.29 = 285,264.14 : x
  2. Step 2: Convert to fraction form
    765,043.66/1,147,566.29 = 285,264.14/x
  3. Step 3: Cross multiply
    765,043.66x = 1,147,566.29 × 285,264.14
  4. Step 4: Simplify right side
    765,043.66x = 327,359,503,645.69
  5. Step 5: Solve for x
    x = 327,359,503,645.69/765,043.66
  6. Step 6: Final answer
    x = 427,896.50

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