Home / 738,686.84-1,107,790.38-283,254.13

Finding the Fourth Proportional to 738,686.84, 1,107,790.38 and 283,254.13

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Solution

The fourth proportional to 738,686.84, 1,107,790.38 and 283,254.13 is: 424,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,686.84 : 1,107,790.38 = 283,254.13 : x
  2. Step 2: Convert to fraction form
    738,686.84/1,107,790.38 = 283,254.13/x
  3. Step 3: Cross multiply
    738,686.84x = 1,107,790.38 × 283,254.13
  4. Step 4: Simplify right side
    738,686.84x = 313,786,202,029.25
  5. Step 5: Solve for x
    x = 313,786,202,029.25/738,686.84
  6. Step 6: Final answer
    x = 424,789.21

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Double scale
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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.