Home / 1,510,480.80-2,265,721.20-838,634.40

Finding the Fourth Proportional to 1,510,480.80, 2,265,721.20 and 838,634.40

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Solution

The fourth proportional to 1,510,480.80, 2,265,721.20 and 838,634.40 is: 1,257,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,480.80 : 2,265,721.20 = 838,634.40 : x
  2. Step 2: Convert to fraction form
    1,510,480.80/2,265,721.20 = 838,634.40/x
  3. Step 3: Cross multiply
    1,510,480.80x = 2,265,721.20 × 838,634.40
  4. Step 4: Simplify right side
    1,510,480.80x = 1,900,111,739,129.28
  5. Step 5: Solve for x
    x = 1,900,111,739,129.28/1,510,480.80
  6. Step 6: Final answer
    x = 1,257,951.60

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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.