Home / 1,159,156.80-1,736,402.40-781,243.20

Finding the Fourth Proportional to 1,159,156.80, 1,736,402.40 and 781,243.20

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Solution

The fourth proportional to 1,159,156.80, 1,736,402.40 and 781,243.20 is: 1,170,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,156.80 : 1,736,402.40 = 781,243.20 : x
  2. Step 2: Convert to fraction form
    1,159,156.80/1,736,402.40 = 781,243.20/x
  3. Step 3: Cross multiply
    1,159,156.80x = 1,736,402.40 × 781,243.20
  4. Step 4: Simplify right side
    1,159,156.80x = 1,356,552,567,463.68
  5. Step 5: Solve for x
    x = 1,356,552,567,463.68/1,159,156.80
  6. Step 6: Final answer
    x = 1,170,292.55

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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.