Home / 949,594.40-1,309,949.88-643,566.12

Finding the Fourth Proportional to 949,594.40, 1,309,949.88 and 643,566.12

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Solution

The fourth proportional to 949,594.40, 1,309,949.88 and 643,566.12 is: 887,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,594.40 : 1,309,949.88 = 643,566.12 : x
  2. Step 2: Convert to fraction form
    949,594.40/1,309,949.88 = 643,566.12/x
  3. Step 3: Cross multiply
    949,594.40x = 1,309,949.88 × 643,566.12
  4. Step 4: Simplify right side
    949,594.40x = 843,039,366,578.38
  5. Step 5: Solve for x
    x = 843,039,366,578.38/949,594.40
  6. Step 6: Final answer
    x = 887,788.90

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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.