Home / 931,458.87-1,397,730.56-391,676.13

Finding the Fourth Proportional to 931,458.87, 1,397,730.56 and 391,676.13

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Solution

The fourth proportional to 931,458.87, 1,397,730.56 and 391,676.13 is: 587,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,458.87 : 1,397,730.56 = 391,676.13 : x
  2. Step 2: Convert to fraction form
    931,458.87/1,397,730.56 = 391,676.13/x
  3. Step 3: Cross multiply
    931,458.87x = 1,397,730.56 × 391,676.13
  4. Step 4: Simplify right side
    931,458.87x = 547,457,694,565.15
  5. Step 5: Solve for x
    x = 547,457,694,565.15/931,458.87
  6. Step 6: Final answer
    x = 587,742.21

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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.