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Finding the Fourth Proportional to 1,282,584.24, 1,769,690.52 and 773,275.68

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Solution

The fourth proportional to 1,282,584.24, 1,769,690.52 and 773,275.68 is: 1,066,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,584.24 : 1,769,690.52 = 773,275.68 : x
  2. Step 2: Convert to fraction form
    1,282,584.24/1,769,690.52 = 773,275.68/x
  3. Step 3: Cross multiply
    1,282,584.24x = 1,769,690.52 × 773,275.68
  4. Step 4: Simplify right side
    1,282,584.24x = 1,368,458,640,242.55
  5. Step 5: Solve for x
    x = 1,368,458,640,242.55/1,282,584.24
  6. Step 6: Final answer
    x = 1,066,954.20

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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.