Home / 1,284,565.43-1,772,700.32-711,642.71

Finding the Fourth Proportional to 1,284,565.43, 1,772,700.32 and 711,642.71

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Solution

The fourth proportional to 1,284,565.43, 1,772,700.32 and 711,642.71 is: 982,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,565.43 : 1,772,700.32 = 711,642.71 : x
  2. Step 2: Convert to fraction form
    1,284,565.43/1,772,700.32 = 711,642.71/x
  3. Step 3: Cross multiply
    1,284,565.43x = 1,772,700.32 × 711,642.71
  4. Step 4: Simplify right side
    1,284,565.43x = 1,261,529,259,742.67
  5. Step 5: Solve for x
    x = 1,261,529,259,742.67/1,284,565.43
  6. Step 6: Final answer
    x = 982,066.95

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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.