Home / 1,270,867.50-1,907,089.11-738,639.18

Finding the Fourth Proportional to 1,270,867.50, 1,907,089.11 and 738,639.18

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Solution

The fourth proportional to 1,270,867.50, 1,907,089.11 and 738,639.18 is: 1,108,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,867.50 : 1,907,089.11 = 738,639.18 : x
  2. Step 2: Convert to fraction form
    1,270,867.50/1,907,089.11 = 738,639.18/x
  3. Step 3: Cross multiply
    1,270,867.50x = 1,907,089.11 × 738,639.18
  4. Step 4: Simplify right side
    1,270,867.50x = 1,408,650,736,397.33
  5. Step 5: Solve for x
    x = 1,408,650,736,397.33/1,270,867.50
  6. Step 6: Final answer
    x = 1,108,416.68

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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.