Home / 1,217,621.76-1,680,320.04-673,780.44

Finding the Fourth Proportional to 1,217,621.76, 1,680,320.04 and 673,780.44

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Solution

The fourth proportional to 1,217,621.76, 1,680,320.04 and 673,780.44 is: 929,818.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,621.76 : 1,680,320.04 = 673,780.44 : x
  2. Step 2: Convert to fraction form
    1,217,621.76/1,680,320.04 = 673,780.44/x
  3. Step 3: Cross multiply
    1,217,621.76x = 1,680,320.04 × 673,780.44
  4. Step 4: Simplify right side
    1,217,621.76x = 1,132,166,775,892.02
  5. Step 5: Solve for x
    x = 1,132,166,775,892.02/1,217,621.76
  6. Step 6: Final answer
    x = 929,818.12

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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.