Home / 989,854.12-1,365,999.78-537,145.12

Finding the Fourth Proportional to 989,854.12, 1,365,999.78 and 537,145.12

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Solution

The fourth proportional to 989,854.12, 1,365,999.78 and 537,145.12 is: 741,260.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,854.12 : 1,365,999.78 = 537,145.12 : x
  2. Step 2: Convert to fraction form
    989,854.12/1,365,999.78 = 537,145.12/x
  3. Step 3: Cross multiply
    989,854.12x = 1,365,999.78 × 537,145.12
  4. Step 4: Simplify right side
    989,854.12x = 733,740,115,748.07
  5. Step 5: Solve for x
    x = 733,740,115,748.07/989,854.12
  6. Step 6: Final answer
    x = 741,260.86

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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.