Home / 1,425,129.67-1,966,710.78-813,270.25

Finding the Fourth Proportional to 1,425,129.67, 1,966,710.78 and 813,270.25

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Solution

The fourth proportional to 1,425,129.67, 1,966,710.78 and 813,270.25 is: 1,122,331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,129.67 : 1,966,710.78 = 813,270.25 : x
  2. Step 2: Convert to fraction form
    1,425,129.67/1,966,710.78 = 813,270.25/x
  3. Step 3: Cross multiply
    1,425,129.67x = 1,966,710.78 × 813,270.25
  4. Step 4: Simplify right side
    1,425,129.67x = 1,599,467,367,728.30
  5. Step 5: Solve for x
    x = 1,599,467,367,728.30/1,425,129.67
  6. Step 6: Final answer
    x = 1,122,331.11

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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.