Home / 1,121,440.34-1,681,569.41-489,616.04

Finding the Fourth Proportional to 1,121,440.34, 1,681,569.41 and 489,616.04

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Solution

The fourth proportional to 1,121,440.34, 1,681,569.41 and 489,616.04 is: 734,165.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,440.34 : 1,681,569.41 = 489,616.04 : x
  2. Step 2: Convert to fraction form
    1,121,440.34/1,681,569.41 = 489,616.04/x
  3. Step 3: Cross multiply
    1,121,440.34x = 1,681,569.41 × 489,616.04
  4. Step 4: Simplify right side
    1,121,440.34x = 823,323,344,653.41
  5. Step 5: Solve for x
    x = 823,323,344,653.41/1,121,440.34
  6. Step 6: Final answer
    x = 734,165.98

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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.