Home / 720,386.80-1,081,137.85-271,515.98

Finding the Fourth Proportional to 720,386.80, 1,081,137.85 and 271,515.98

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Solution

The fourth proportional to 720,386.80, 1,081,137.85 and 271,515.98 is: 407,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,386.80 : 1,081,137.85 = 271,515.98 : x
  2. Step 2: Convert to fraction form
    720,386.80/1,081,137.85 = 271,515.98/x
  3. Step 3: Cross multiply
    720,386.80x = 1,081,137.85 × 271,515.98
  4. Step 4: Simplify right side
    720,386.80x = 293,546,204,881.90
  5. Step 5: Solve for x
    x = 293,546,204,881.90/720,386.80
  6. Step 6: Final answer
    x = 407,484.15

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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.