Home / 1,397,981.77-2,096,978.12-425,355.74

Finding the Fourth Proportional to 1,397,981.77, 2,096,978.12 and 425,355.74

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Solution

The fourth proportional to 1,397,981.77, 2,096,978.12 and 425,355.74 is: 638,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,981.77 : 2,096,978.12 = 425,355.74 : x
  2. Step 2: Convert to fraction form
    1,397,981.77/2,096,978.12 = 425,355.74/x
  3. Step 3: Cross multiply
    1,397,981.77x = 2,096,978.12 × 425,355.74
  4. Step 4: Simplify right side
    1,397,981.77x = 891,961,676,843.49
  5. Step 5: Solve for x
    x = 891,961,676,843.49/1,397,981.77
  6. Step 6: Final answer
    x = 638,035.27

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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.