Home / 3,520,020.80-5,280,031.20-1,275,867.20

Finding the Fourth Proportional to 3,520,020.80, 5,280,031.20 and 1,275,867.20

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Solution

The fourth proportional to 3,520,020.80, 5,280,031.20 and 1,275,867.20 is: 1,913,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520,020.80 : 5,280,031.20 = 1,275,867.20 : x
  2. Step 2: Convert to fraction form
    3,520,020.80/5,280,031.20 = 1,275,867.20/x
  3. Step 3: Cross multiply
    3,520,020.80x = 5,280,031.20 × 1,275,867.20
  4. Step 4: Simplify right side
    3,520,020.80x = 6,736,618,623,056.64
  5. Step 5: Solve for x
    x = 6,736,618,623,056.64/3,520,020.80
  6. Step 6: Final answer
    x = 1,913,800.80

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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.