Home / 1,137,971.92-1,707,212.08-428,006.11

Finding the Fourth Proportional to 1,137,971.92, 1,707,212.08 and 428,006.11

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Solution

The fourth proportional to 1,137,971.92, 1,707,212.08 and 428,006.11 is: 642,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,971.92 : 1,707,212.08 = 428,006.11 : x
  2. Step 2: Convert to fraction form
    1,137,971.92/1,707,212.08 = 428,006.11/x
  3. Step 3: Cross multiply
    1,137,971.92x = 1,707,212.08 × 428,006.11
  4. Step 4: Simplify right side
    1,137,971.92x = 730,697,197,572.79
  5. Step 5: Solve for x
    x = 730,697,197,572.79/1,137,971.92
  6. Step 6: Final answer
    x = 642,104.77

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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.