Home / 775,478.78-1,163,218.58-243,041.28

Finding the Fourth Proportional to 775,478.78, 1,163,218.58 and 243,041.28

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Solution

The fourth proportional to 775,478.78, 1,163,218.58 and 243,041.28 is: 364,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,478.78 : 1,163,218.58 = 243,041.28 : x
  2. Step 2: Convert to fraction form
    775,478.78/1,163,218.58 = 243,041.28/x
  3. Step 3: Cross multiply
    775,478.78x = 1,163,218.58 × 243,041.28
  4. Step 4: Simplify right side
    775,478.78x = 282,710,131,387.78
  5. Step 5: Solve for x
    x = 282,710,131,387.78/775,478.78
  6. Step 6: Final answer
    x = 364,562.05

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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.