Home / 1,425,168.10-1,966,763.87-813,308.68

Finding the Fourth Proportional to 1,425,168.10, 1,966,763.87 and 813,308.68

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Solution

The fourth proportional to 1,425,168.10, 1,966,763.87 and 813,308.68 is: 1,122,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,168.10 : 1,966,763.87 = 813,308.68 : x
  2. Step 2: Convert to fraction form
    1,425,168.10/1,966,763.87 = 813,308.68/x
  3. Step 3: Cross multiply
    1,425,168.10x = 1,966,763.87 × 813,308.68
  4. Step 4: Simplify right side
    1,425,168.10x = 1,599,586,126,981.39
  5. Step 5: Solve for x
    x = 1,599,586,126,981.39/1,425,168.10
  6. Step 6: Final answer
    x = 1,122,384.18

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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.