Home / 989,042.60-1,482,915.90-389,642.60

Finding the Fourth Proportional to 989,042.60, 1,482,915.90 and 389,642.60

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Solution

The fourth proportional to 989,042.60, 1,482,915.90 and 389,642.60 is: 584,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,042.60 : 1,482,915.90 = 389,642.60 : x
  2. Step 2: Convert to fraction form
    989,042.60/1,482,915.90 = 389,642.60/x
  3. Step 3: Cross multiply
    989,042.60x = 1,482,915.90 × 389,642.60
  4. Step 4: Simplify right side
    989,042.60x = 577,807,206,857.34
  5. Step 5: Solve for x
    x = 577,807,206,857.34/989,042.60
  6. Step 6: Final answer
    x = 584,208.61

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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.