Home / 783,400.90-1,175,101.35-222,435.40

Finding the Fourth Proportional to 783,400.90, 1,175,101.35 and 222,435.40

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Solution

The fourth proportional to 783,400.90, 1,175,101.35 and 222,435.40 is: 333,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,400.90 : 1,175,101.35 = 222,435.40 : x
  2. Step 2: Convert to fraction form
    783,400.90/1,175,101.35 = 222,435.40/x
  3. Step 3: Cross multiply
    783,400.90x = 1,175,101.35 × 222,435.40
  4. Step 4: Simplify right side
    783,400.90x = 261,384,138,827.79
  5. Step 5: Solve for x
    x = 261,384,138,827.79/783,400.90
  6. Step 6: Final answer
    x = 333,653.10

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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.