Home / 387,286.58-534,239.70-359,886.36

Finding the Fourth Proportional to 387,286.58, 534,239.70 and 359,886.36

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Solution

The fourth proportional to 387,286.58, 534,239.70 and 359,886.36 is: 496,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,286.58 : 534,239.70 = 359,886.36 : x
  2. Step 2: Convert to fraction form
    387,286.58/534,239.70 = 359,886.36/x
  3. Step 3: Cross multiply
    387,286.58x = 534,239.70 × 359,886.36
  4. Step 4: Simplify right side
    387,286.58x = 192,265,581,000.49
  5. Step 5: Solve for x
    x = 192,265,581,000.49/387,286.58
  6. Step 6: Final answer
    x = 496,442.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.