Home / 3,215,038.40-4,828,087.20-3,115,505.60

Finding the Fourth Proportional to 3,215,038.40, 4,828,087.20 and 3,115,505.60

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Solution

The fourth proportional to 3,215,038.40, 4,828,087.20 and 3,115,505.60 is: 4,678,616.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215,038.40 : 4,828,087.20 = 3,115,505.60 : x
  2. Step 2: Convert to fraction form
    3,215,038.40/4,828,087.20 = 3,115,505.60/x
  3. Step 3: Cross multiply
    3,215,038.40x = 4,828,087.20 × 3,115,505.60
  4. Step 4: Simplify right side
    3,215,038.40x = 15,041,932,708,888.32
  5. Step 5: Solve for x
    x = 15,041,932,708,888.32/3,215,038.40
  6. Step 6: Final answer
    x = 4,678,616.81

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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.