Home / 676,505.21-933,565.38-370,587.65

Finding the Fourth Proportional to 676,505.21, 933,565.38 and 370,587.65

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Solution

The fourth proportional to 676,505.21, 933,565.38 and 370,587.65 is: 511,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,505.21 : 933,565.38 = 370,587.65 : x
  2. Step 2: Convert to fraction form
    676,505.21/933,565.38 = 370,587.65/x
  3. Step 3: Cross multiply
    676,505.21x = 933,565.38 × 370,587.65
  4. Step 4: Simplify right side
    676,505.21x = 345,967,800,295.56
  5. Step 5: Solve for x
    x = 345,967,800,295.56/676,505.21
  6. Step 6: Final answer
    x = 511,404.49

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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.