Home / 3,108,042.30-4,662,063.45-978,779.10

Finding the Fourth Proportional to 3,108,042.30, 4,662,063.45 and 978,779.10

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Solution

The fourth proportional to 3,108,042.30, 4,662,063.45 and 978,779.10 is: 1,468,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,042.30 : 4,662,063.45 = 978,779.10 : x
  2. Step 2: Convert to fraction form
    3,108,042.30/4,662,063.45 = 978,779.10/x
  3. Step 3: Cross multiply
    3,108,042.30x = 4,662,063.45 × 978,779.10
  4. Step 4: Simplify right side
    3,108,042.30x = 4,563,130,267,733.90
  5. Step 5: Solve for x
    x = 4,563,130,267,733.90/3,108,042.30
  6. Step 6: Final answer
    x = 1,468,168.65

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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.