Home / 989,565.39-1,365,728.85-554,148.51

Finding the Fourth Proportional to 989,565.39, 1,365,728.85 and 554,148.51

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Solution

The fourth proportional to 989,565.39, 1,365,728.85 and 554,148.51 is: 764,796.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,565.39 : 1,365,728.85 = 554,148.51 : x
  2. Step 2: Convert to fraction form
    989,565.39/1,365,728.85 = 554,148.51/x
  3. Step 3: Cross multiply
    989,565.39x = 1,365,728.85 × 554,148.51
  4. Step 4: Simplify right side
    989,565.39x = 756,816,607,291.51
  5. Step 5: Solve for x
    x = 756,816,607,291.51/989,565.39
  6. Step 6: Final answer
    x = 764,796.97

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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.