Home / 1,425,031.28-1,966,504.56-813,172.76

Finding the Fourth Proportional to 1,425,031.28, 1,966,504.56 and 813,172.76

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Solution

The fourth proportional to 1,425,031.28, 1,966,504.56 and 813,172.76 is: 1,122,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,031.28 : 1,966,504.56 = 813,172.76 : x
  2. Step 2: Convert to fraction form
    1,425,031.28/1,966,504.56 = 813,172.76/x
  3. Step 3: Cross multiply
    1,425,031.28x = 1,966,504.56 × 813,172.76
  4. Step 4: Simplify right side
    1,425,031.28x = 1,599,107,940,607.79
  5. Step 5: Solve for x
    x = 1,599,107,940,607.79/1,425,031.28
  6. Step 6: Final answer
    x = 1,122,156.38

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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.