Home / 5,315,134.40-7,973,968.71-1,720,902.41

Finding the Fourth Proportional to 5,315,134.40, 7,973,968.71 and 1,720,902.41

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Solution

The fourth proportional to 5,315,134.40, 7,973,968.71 and 1,720,902.41 is: 2,581,763.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,134.40 : 7,973,968.71 = 1,720,902.41 : x
  2. Step 2: Convert to fraction form
    5,315,134.40/7,973,968.71 = 1,720,902.41/x
  3. Step 3: Cross multiply
    5,315,134.40x = 7,973,968.71 × 1,720,902.41
  4. Step 4: Simplify right side
    5,315,134.40x = 13,722,421,970,303.59
  5. Step 5: Solve for x
    x = 13,722,421,970,303.59/5,315,134.40
  6. Step 6: Final answer
    x = 2,581,763.87

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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.