Home / 921,984.28-1,272,351.90-514,074.04

Finding the Fourth Proportional to 921,984.28, 1,272,351.90 and 514,074.04

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Solution

The fourth proportional to 921,984.28, 1,272,351.90 and 514,074.04 is: 709,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,984.28 : 1,272,351.90 = 514,074.04 : x
  2. Step 2: Convert to fraction form
    921,984.28/1,272,351.90 = 514,074.04/x
  3. Step 3: Cross multiply
    921,984.28x = 1,272,351.90 × 514,074.04
  4. Step 4: Simplify right side
    921,984.28x = 654,083,081,534.68
  5. Step 5: Solve for x
    x = 654,083,081,534.68/921,984.28
  6. Step 6: Final answer
    x = 709,429.75

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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.