Home / 3,012,312.20-4,518,613.56-990,511.34

Finding the Fourth Proportional to 3,012,312.20, 4,518,613.56 and 990,511.34

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Solution

The fourth proportional to 3,012,312.20, 4,518,613.56 and 990,511.34 is: 1,485,814.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012,312.20 : 4,518,613.56 = 990,511.34 : x
  2. Step 2: Convert to fraction form
    3,012,312.20/4,518,613.56 = 990,511.34/x
  3. Step 3: Cross multiply
    3,012,312.20x = 4,518,613.56 × 990,511.34
  4. Step 4: Simplify right side
    3,012,312.20x = 4,475,737,966,609.50
  5. Step 5: Solve for x
    x = 4,475,737,966,609.50/3,012,312.20
  6. Step 6: Final answer
    x = 1,485,814.78

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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.