Home / 918,727.05-1,378,370.33-469,763.29

Finding the Fourth Proportional to 918,727.05, 1,378,370.33 and 469,763.29

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Solution

The fourth proportional to 918,727.05, 1,378,370.33 and 469,763.29 is: 704,787.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,727.05 : 1,378,370.33 = 469,763.29 : x
  2. Step 2: Convert to fraction form
    918,727.05/1,378,370.33 = 469,763.29/x
  3. Step 3: Cross multiply
    918,727.05x = 1,378,370.33 × 469,763.29
  4. Step 4: Simplify right side
    918,727.05x = 647,507,771,818.52
  5. Step 5: Solve for x
    x = 647,507,771,818.52/918,727.05
  6. Step 6: Final answer
    x = 704,787.97

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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.