Home / 1,213,938.20-1,675,234.78-670,074.12

Finding the Fourth Proportional to 1,213,938.20, 1,675,234.78 and 670,074.12

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Solution

The fourth proportional to 1,213,938.20, 1,675,234.78 and 670,074.12 is: 924,702.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,938.20 : 1,675,234.78 = 670,074.12 : x
  2. Step 2: Convert to fraction form
    1,213,938.20/1,675,234.78 = 670,074.12/x
  3. Step 3: Cross multiply
    1,213,938.20x = 1,675,234.78 × 670,074.12
  4. Step 4: Simplify right side
    1,213,938.20x = 1,122,531,471,001.89
  5. Step 5: Solve for x
    x = 1,122,531,471,001.89/1,213,938.20
  6. Step 6: Final answer
    x = 924,702.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.