Home / 5,315,339.94-7,974,172.68-1,721,470.20

Finding the Fourth Proportional to 5,315,339.94, 7,974,172.68 and 1,721,470.20

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Solution

The fourth proportional to 5,315,339.94, 7,974,172.68 and 1,721,470.20 is: 2,582,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,339.94 : 7,974,172.68 = 1,721,470.20 : x
  2. Step 2: Convert to fraction form
    5,315,339.94/7,974,172.68 = 1,721,470.20/x
  3. Step 3: Cross multiply
    5,315,339.94x = 7,974,172.68 × 1,721,470.20
  4. Step 4: Simplify right side
    5,315,339.94x = 13,727,300,638,274.13
  5. Step 5: Solve for x
    x = 13,727,300,638,274.13/5,315,339.94
  6. Step 6: Final answer
    x = 2,582,581.88

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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.