Home / 931,894.40-1,396,671.68-398,788.48

Finding the Fourth Proportional to 931,894.40, 1,396,671.68 and 398,788.48

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Solution

The fourth proportional to 931,894.40, 1,396,671.68 and 398,788.48 is: 597,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,894.40 : 1,396,671.68 = 398,788.48 : x
  2. Step 2: Convert to fraction form
    931,894.40/1,396,671.68 = 398,788.48/x
  3. Step 3: Cross multiply
    931,894.40x = 1,396,671.68 × 398,788.48
  4. Step 4: Simplify right side
    931,894.40x = 556,976,576,326.25
  5. Step 5: Solve for x
    x = 556,976,576,326.25/931,894.40
  6. Step 6: Final answer
    x = 597,682.07

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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.