Home / 1,347,055.20-1,859,255.28-774,428.04

Finding the Fourth Proportional to 1,347,055.20, 1,859,255.28 and 774,428.04

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Solution

The fourth proportional to 1,347,055.20, 1,859,255.28 and 774,428.04 is: 1,068,894.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,055.20 : 1,859,255.28 = 774,428.04 : x
  2. Step 2: Convert to fraction form
    1,347,055.20/1,859,255.28 = 774,428.04/x
  3. Step 3: Cross multiply
    1,347,055.20x = 1,859,255.28 × 774,428.04
  4. Step 4: Simplify right side
    1,347,055.20x = 1,439,859,422,350.05
  5. Step 5: Solve for x
    x = 1,439,859,422,350.05/1,347,055.20
  6. Step 6: Final answer
    x = 1,068,894.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.