Home / 955,125.28-1,317,953.23-645,701.23

Finding the Fourth Proportional to 955,125.28, 1,317,953.23 and 645,701.23

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Solution

The fourth proportional to 955,125.28, 1,317,953.23 and 645,701.23 is: 890,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,125.28 : 1,317,953.23 = 645,701.23 : x
  2. Step 2: Convert to fraction form
    955,125.28/1,317,953.23 = 645,701.23/x
  3. Step 3: Cross multiply
    955,125.28x = 1,317,953.23 × 645,701.23
  4. Step 4: Simplify right side
    955,125.28x = 851,004,021,693.47
  5. Step 5: Solve for x
    x = 851,004,021,693.47/955,125.28
  6. Step 6: Final answer
    x = 890,986.81

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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.