Home / 949,594.91-1,309,950.57-643,566.63

Finding the Fourth Proportional to 949,594.91, 1,309,950.57 and 643,566.63

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Solution

The fourth proportional to 949,594.91, 1,309,950.57 and 643,566.63 is: 887,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,594.91 : 1,309,950.57 = 643,566.63 : x
  2. Step 2: Convert to fraction form
    949,594.91/1,309,950.57 = 643,566.63/x
  3. Step 3: Cross multiply
    949,594.91x = 1,309,950.57 × 643,566.63
  4. Step 4: Simplify right side
    949,594.91x = 843,040,473,801.48
  5. Step 5: Solve for x
    x = 843,040,473,801.48/949,594.91
  6. Step 6: Final answer
    x = 887,789.59

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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.