Home / 1,276,758.30-1,915,417.71-378,270.39

Finding the Fourth Proportional to 1,276,758.30, 1,915,417.71 and 378,270.39

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Solution

The fourth proportional to 1,276,758.30, 1,915,417.71 and 378,270.39 is: 567,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,758.30 : 1,915,417.71 = 378,270.39 : x
  2. Step 2: Convert to fraction form
    1,276,758.30/1,915,417.71 = 378,270.39/x
  3. Step 3: Cross multiply
    1,276,758.30x = 1,915,417.71 × 378,270.39
  4. Step 4: Simplify right side
    1,276,758.30x = 724,545,804,174.61
  5. Step 5: Solve for x
    x = 724,545,804,174.61/1,276,758.30
  6. Step 6: Final answer
    x = 567,488.62

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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.