Home / 3,885,280.80-5,827,921.20-1,521,376.80

Finding the Fourth Proportional to 3,885,280.80, 5,827,921.20 and 1,521,376.80

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Solution

The fourth proportional to 3,885,280.80, 5,827,921.20 and 1,521,376.80 is: 2,282,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885,280.80 : 5,827,921.20 = 1,521,376.80 : x
  2. Step 2: Convert to fraction form
    3,885,280.80/5,827,921.20 = 1,521,376.80/x
  3. Step 3: Cross multiply
    3,885,280.80x = 5,827,921.20 × 1,521,376.80
  4. Step 4: Simplify right side
    3,885,280.80x = 8,866,464,105,908.16
  5. Step 5: Solve for x
    x = 8,866,464,105,908.16/3,885,280.80
  6. Step 6: Final answer
    x = 2,282,065.20

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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.