Home / 1,087,392.39-1,631,383.85-329,259.29

Finding the Fourth Proportional to 1,087,392.39, 1,631,383.85 and 329,259.29

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Solution

The fourth proportional to 1,087,392.39, 1,631,383.85 and 329,259.29 is: 493,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,392.39 : 1,631,383.85 = 329,259.29 : x
  2. Step 2: Convert to fraction form
    1,087,392.39/1,631,383.85 = 329,259.29/x
  3. Step 3: Cross multiply
    1,087,392.39x = 1,631,383.85 × 329,259.29
  4. Step 4: Simplify right side
    1,087,392.39x = 537,148,288,168.47
  5. Step 5: Solve for x
    x = 537,148,288,168.47/1,087,392.39
  6. Step 6: Final answer
    x = 493,978.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.