Home / 2,808,098.40-4,212,147.60-915,031.20

Finding the Fourth Proportional to 2,808,098.40, 4,212,147.60 and 915,031.20

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Solution

The fourth proportional to 2,808,098.40, 4,212,147.60 and 915,031.20 is: 1,372,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,098.40 : 4,212,147.60 = 915,031.20 : x
  2. Step 2: Convert to fraction form
    2,808,098.40/4,212,147.60 = 915,031.20/x
  3. Step 3: Cross multiply
    2,808,098.40x = 4,212,147.60 × 915,031.20
  4. Step 4: Simplify right side
    2,808,098.40x = 3,854,246,473,005.12
  5. Step 5: Solve for x
    x = 3,854,246,473,005.12/2,808,098.40
  6. Step 6: Final answer
    x = 1,372,546.80

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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.