Home / 989,132.40-1,482,605.10-389,894.40

Finding the Fourth Proportional to 989,132.40, 1,482,605.10 and 389,894.40

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Solution

The fourth proportional to 989,132.40, 1,482,605.10 and 389,894.40 is: 584,410.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,132.40 : 1,482,605.10 = 389,894.40 : x
  2. Step 2: Convert to fraction form
    989,132.40/1,482,605.10 = 389,894.40/x
  3. Step 3: Cross multiply
    989,132.40x = 1,482,605.10 × 389,894.40
  4. Step 4: Simplify right side
    989,132.40x = 578,059,425,901.44
  5. Step 5: Solve for x
    x = 578,059,425,901.44/989,132.40
  6. Step 6: Final answer
    x = 584,410.57

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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.