Home / 988,122.20-1,482,572.10-388,981.40

Finding the Fourth Proportional to 988,122.20, 1,482,572.10 and 388,981.40

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Solution

The fourth proportional to 988,122.20, 1,482,572.10 and 388,981.40 is: 583,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,122.20 : 1,482,572.10 = 388,981.40 : x
  2. Step 2: Convert to fraction form
    988,122.20/1,482,572.10 = 388,981.40/x
  3. Step 3: Cross multiply
    988,122.20x = 1,482,572.10 × 388,981.40
  4. Step 4: Simplify right side
    988,122.20x = 576,692,971,058.94
  5. Step 5: Solve for x
    x = 576,692,971,058.94/988,122.20
  6. Step 6: Final answer
    x = 583,625.15

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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.