Home / 1,440,724.76-1,988,206.29-787,363.77

Finding the Fourth Proportional to 1,440,724.76, 1,988,206.29 and 787,363.77

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Solution

The fourth proportional to 1,440,724.76, 1,988,206.29 and 787,363.77 is: 1,086,565.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,724.76 : 1,988,206.29 = 787,363.77 : x
  2. Step 2: Convert to fraction form
    1,440,724.76/1,988,206.29 = 787,363.77/x
  3. Step 3: Cross multiply
    1,440,724.76x = 1,988,206.29 × 787,363.77
  4. Step 4: Simplify right side
    1,440,724.76x = 1,565,441,600,032.11
  5. Step 5: Solve for x
    x = 1,565,441,600,032.11/1,440,724.76
  6. Step 6: Final answer
    x = 1,086,565.35

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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.