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Finding the Fourth Proportional to 865,408.52, 1,297,410.44 and 360,347.36

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Solution

The fourth proportional to 865,408.52, 1,297,410.44 and 360,347.36 is: 540,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,408.52 : 1,297,410.44 = 360,347.36 : x
  2. Step 2: Convert to fraction form
    865,408.52/1,297,410.44 = 360,347.36/x
  3. Step 3: Cross multiply
    865,408.52x = 1,297,410.44 × 360,347.36
  4. Step 4: Simplify right side
    865,408.52x = 467,518,418,601.65
  5. Step 5: Solve for x
    x = 467,518,418,601.65/865,408.52
  6. Step 6: Final answer
    x = 540,228.58

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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.