Home / 989,770.97-1,365,566.49-554,124.30

Finding the Fourth Proportional to 989,770.97, 1,365,566.49 and 554,124.30

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Solution

The fourth proportional to 989,770.97, 1,365,566.49 and 554,124.30 is: 764,513.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,770.97 : 1,365,566.49 = 554,124.30 : x
  2. Step 2: Convert to fraction form
    989,770.97/1,365,566.49 = 554,124.30/x
  3. Step 3: Cross multiply
    989,770.97x = 1,365,566.49 × 554,124.30
  4. Step 4: Simplify right side
    989,770.97x = 756,693,575,374.71
  5. Step 5: Solve for x
    x = 756,693,575,374.71/989,770.97
  6. Step 6: Final answer
    x = 764,513.81

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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.