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Finding the Fourth Proportional to 1,329,308.64, 1,834,656.48 and 845,369.28

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Solution

The fourth proportional to 1,329,308.64, 1,834,656.48 and 845,369.28 is: 1,166,743.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,308.64 : 1,834,656.48 = 845,369.28 : x
  2. Step 2: Convert to fraction form
    1,329,308.64/1,834,656.48 = 845,369.28/x
  3. Step 3: Cross multiply
    1,329,308.64x = 1,834,656.48 × 845,369.28
  4. Step 4: Simplify right side
    1,329,308.64x = 1,550,962,227,544.93
  5. Step 5: Solve for x
    x = 1,550,962,227,544.93/1,329,308.64
  6. Step 6: Final answer
    x = 1,166,743.51

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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.