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Finding the Fourth Proportional to 1,270,493.07, 1,904,057.37 and 931,948.71

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Solution

The fourth proportional to 1,270,493.07, 1,904,057.37 and 931,948.71 is: 1,396,689.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,493.07 : 1,904,057.37 = 931,948.71 : x
  2. Step 2: Convert to fraction form
    1,270,493.07/1,904,057.37 = 931,948.71/x
  3. Step 3: Cross multiply
    1,270,493.07x = 1,904,057.37 × 931,948.71
  4. Step 4: Simplify right side
    1,270,493.07x = 1,774,483,809,737.49
  5. Step 5: Solve for x
    x = 1,774,483,809,737.49/1,270,493.07
  6. Step 6: Final answer
    x = 1,396,689.09

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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.