Home / 1,102,125.71-1,520,498.85-636,671.96

Finding the Fourth Proportional to 1,102,125.71, 1,520,498.85 and 636,671.96

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Solution

The fourth proportional to 1,102,125.71, 1,520,498.85 and 636,671.96 is: 878,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,125.71 : 1,520,498.85 = 636,671.96 : x
  2. Step 2: Convert to fraction form
    1,102,125.71/1,520,498.85 = 636,671.96/x
  3. Step 3: Cross multiply
    1,102,125.71x = 1,520,498.85 × 636,671.96
  4. Step 4: Simplify right side
    1,102,125.71x = 968,058,983,007.25
  5. Step 5: Solve for x
    x = 968,058,983,007.25/1,102,125.71
  6. Step 6: Final answer
    x = 878,356.23

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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.