Home / 752,384.30-1,128,051.54-278,942.54

Finding the Fourth Proportional to 752,384.30, 1,128,051.54 and 278,942.54

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Solution

The fourth proportional to 752,384.30, 1,128,051.54 and 278,942.54 is: 418,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,384.30 : 1,128,051.54 = 278,942.54 : x
  2. Step 2: Convert to fraction form
    752,384.30/1,128,051.54 = 278,942.54/x
  3. Step 3: Cross multiply
    752,384.30x = 1,128,051.54 × 278,942.54
  4. Step 4: Simplify right side
    752,384.30x = 314,661,561,818.51
  5. Step 5: Solve for x
    x = 314,661,561,818.51/752,384.30
  6. Step 6: Final answer
    x = 418,219.20

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1.5x scale

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.