Home / 1,006,145.23-1,388,354.31-680,167.50

Finding the Fourth Proportional to 1,006,145.23, 1,388,354.31 and 680,167.50

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Solution

The fourth proportional to 1,006,145.23, 1,388,354.31 and 680,167.50 is: 938,545.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,145.23 : 1,388,354.31 = 680,167.50 : x
  2. Step 2: Convert to fraction form
    1,006,145.23/1,388,354.31 = 680,167.50/x
  3. Step 3: Cross multiply
    1,006,145.23x = 1,388,354.31 × 680,167.50
  4. Step 4: Simplify right side
    1,006,145.23x = 944,313,470,965.53
  5. Step 5: Solve for x
    x = 944,313,470,965.53/1,006,145.23
  6. Step 6: Final answer
    x = 938,545.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.