Home / 989,107.29-1,365,025.64-553,520.97

Finding the Fourth Proportional to 989,107.29, 1,365,025.64 and 553,520.97

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Solution

The fourth proportional to 989,107.29, 1,365,025.64 and 553,520.97 is: 763,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,107.29 : 1,365,025.64 = 553,520.97 : x
  2. Step 2: Convert to fraction form
    989,107.29/1,365,025.64 = 553,520.97/x
  3. Step 3: Cross multiply
    989,107.29x = 1,365,025.64 × 553,520.97
  4. Step 4: Simplify right side
    989,107.29x = 755,570,313,560.07
  5. Step 5: Solve for x
    x = 755,570,313,560.07/989,107.29
  6. Step 6: Final answer
    x = 763,891.16

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1.5x scale

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.