Home / 816,820.11-1,225,307.00-240,443.78

Finding the Fourth Proportional to 816,820.11, 1,225,307.00 and 240,443.78

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Solution

The fourth proportional to 816,820.11, 1,225,307.00 and 240,443.78 is: 360,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,820.11 : 1,225,307.00 = 240,443.78 : x
  2. Step 2: Convert to fraction form
    816,820.11/1,225,307.00 = 240,443.78/x
  3. Step 3: Cross multiply
    816,820.11x = 1,225,307.00 × 240,443.78
  4. Step 4: Simplify right side
    816,820.11x = 294,617,441,215.03
  5. Step 5: Solve for x
    x = 294,617,441,215.03/816,820.11
  6. Step 6: Final answer
    x = 360,688.28

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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.