Home / 627,123.66-940,802.16-206,429.10

Finding the Fourth Proportional to 627,123.66, 940,802.16 and 206,429.10

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Solution

The fourth proportional to 627,123.66, 940,802.16 and 206,429.10 is: 309,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,123.66 : 940,802.16 = 206,429.10 : x
  2. Step 2: Convert to fraction form
    627,123.66/940,802.16 = 206,429.10/x
  3. Step 3: Cross multiply
    627,123.66x = 940,802.16 × 206,429.10
  4. Step 4: Simplify right side
    627,123.66x = 194,208,943,166.86
  5. Step 5: Solve for x
    x = 194,208,943,166.86/627,123.66
  6. Step 6: Final answer
    x = 309,682.05

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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.