Home / 775,480.29-1,163,220.84-243,042.78

Finding the Fourth Proportional to 775,480.29, 1,163,220.84 and 243,042.78

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Solution

The fourth proportional to 775,480.29, 1,163,220.84 and 243,042.78 is: 364,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,480.29 : 1,163,220.84 = 243,042.78 : x
  2. Step 2: Convert to fraction form
    775,480.29/1,163,220.84 = 243,042.78/x
  3. Step 3: Cross multiply
    775,480.29x = 1,163,220.84 × 243,042.78
  4. Step 4: Simplify right side
    775,480.29x = 282,712,426,707.54
  5. Step 5: Solve for x
    x = 282,712,426,707.54/775,480.29
  6. Step 6: Final answer
    x = 364,564.30

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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.