Home / 1,276,907.52-1,915,390.40-378,332.40

Finding the Fourth Proportional to 1,276,907.52, 1,915,390.40 and 378,332.40

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Solution

The fourth proportional to 1,276,907.52, 1,915,390.40 and 378,332.40 is: 567,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,907.52 : 1,915,390.40 = 378,332.40 : x
  2. Step 2: Convert to fraction form
    1,276,907.52/1,915,390.40 = 378,332.40/x
  3. Step 3: Cross multiply
    1,276,907.52x = 1,915,390.40 × 378,332.40
  4. Step 4: Simplify right side
    1,276,907.52x = 724,654,246,968.96
  5. Step 5: Solve for x
    x = 724,654,246,968.96/1,276,907.52
  6. Step 6: Final answer
    x = 567,507.23

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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.