Home / 3,888,000.40-5,832,000.60-2,187,389.20

Finding the Fourth Proportional to 3,888,000.40, 5,832,000.60 and 2,187,389.20

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Solution

The fourth proportional to 3,888,000.40, 5,832,000.60 and 2,187,389.20 is: 3,281,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888,000.40 : 5,832,000.60 = 2,187,389.20 : x
  2. Step 2: Convert to fraction form
    3,888,000.40/5,832,000.60 = 2,187,389.20/x
  3. Step 3: Cross multiply
    3,888,000.40x = 5,832,000.60 × 2,187,389.20
  4. Step 4: Simplify right side
    3,888,000.40x = 12,756,855,126,833.52
  5. Step 5: Solve for x
    x = 12,756,855,126,833.52/3,888,000.40
  6. Step 6: Final answer
    x = 3,281,083.80

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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.