Home / 1,578,138.80-2,367,208.20-513,215.60

Finding the Fourth Proportional to 1,578,138.80, 2,367,208.20 and 513,215.60

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Solution

The fourth proportional to 1,578,138.80, 2,367,208.20 and 513,215.60 is: 769,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,138.80 : 2,367,208.20 = 513,215.60 : x
  2. Step 2: Convert to fraction form
    1,578,138.80/2,367,208.20 = 513,215.60/x
  3. Step 3: Cross multiply
    1,578,138.80x = 2,367,208.20 × 513,215.60
  4. Step 4: Simplify right side
    1,578,138.80x = 1,214,888,176,687.92
  5. Step 5: Solve for x
    x = 1,214,888,176,687.92/1,578,138.80
  6. Step 6: Final answer
    x = 769,823.40

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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.