Home / 989,490.25-1,365,496.97-559,761.25

Finding the Fourth Proportional to 989,490.25, 1,365,496.97 and 559,761.25

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Solution

The fourth proportional to 989,490.25, 1,365,496.97 and 559,761.25 is: 772,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,490.25 : 1,365,496.97 = 559,761.25 : x
  2. Step 2: Convert to fraction form
    989,490.25/1,365,496.97 = 559,761.25/x
  3. Step 3: Cross multiply
    989,490.25x = 1,365,496.97 × 559,761.25
  4. Step 4: Simplify right side
    989,490.25x = 764,352,290,798.41
  5. Step 5: Solve for x
    x = 764,352,290,798.41/989,490.25
  6. Step 6: Final answer
    x = 772,470.77

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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.