Home / 3,120,307.10-4,680,979.05-1,227,110.30

Finding the Fourth Proportional to 3,120,307.10, 4,680,979.05 and 1,227,110.30

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Solution

The fourth proportional to 3,120,307.10, 4,680,979.05 and 1,227,110.30 is: 1,840,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,307.10 : 4,680,979.05 = 1,227,110.30 : x
  2. Step 2: Convert to fraction form
    3,120,307.10/4,680,979.05 = 1,227,110.30/x
  3. Step 3: Cross multiply
    3,120,307.10x = 4,680,979.05 × 1,227,110.30
  4. Step 4: Simplify right side
    3,120,307.10x = 5,744,077,606,339.22
  5. Step 5: Solve for x
    x = 5,744,077,606,339.22/3,120,307.10
  6. Step 6: Final answer
    x = 1,840,869.32

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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.