Home / 1,213,921.18-1,675,211.33-670,057.11

Finding the Fourth Proportional to 1,213,921.18, 1,675,211.33 and 670,057.11

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Solution

The fourth proportional to 1,213,921.18, 1,675,211.33 and 670,057.11 is: 924,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,921.18 : 1,675,211.33 = 670,057.11 : x
  2. Step 2: Convert to fraction form
    1,213,921.18/1,675,211.33 = 670,057.11/x
  3. Step 3: Cross multiply
    1,213,921.18x = 1,675,211.33 × 670,057.11
  4. Step 4: Simplify right side
    1,213,921.18x = 1,122,487,259,068.77
  5. Step 5: Solve for x
    x = 1,122,487,259,068.77/1,213,921.18
  6. Step 6: Final answer
    x = 924,678.87

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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.