Home / 2,800,712.80-4,201,069.20-778,952.80

Finding the Fourth Proportional to 2,800,712.80, 4,201,069.20 and 778,952.80

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Solution

The fourth proportional to 2,800,712.80, 4,201,069.20 and 778,952.80 is: 1,168,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,712.80 : 4,201,069.20 = 778,952.80 : x
  2. Step 2: Convert to fraction form
    2,800,712.80/4,201,069.20 = 778,952.80/x
  3. Step 3: Cross multiply
    2,800,712.80x = 4,201,069.20 × 778,952.80
  4. Step 4: Simplify right side
    2,800,712.80x = 3,272,434,616,333.76
  5. Step 5: Solve for x
    x = 3,272,434,616,333.76/2,800,712.80
  6. Step 6: Final answer
    x = 1,168,429.20

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Similar ratio
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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.