Home / 709,453.52-979,066.50-387,184.36

Finding the Fourth Proportional to 709,453.52, 979,066.50 and 387,184.36

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Solution

The fourth proportional to 709,453.52, 979,066.50 and 387,184.36 is: 534,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,453.52 : 979,066.50 = 387,184.36 : x
  2. Step 2: Convert to fraction form
    709,453.52/979,066.50 = 387,184.36/x
  3. Step 3: Cross multiply
    709,453.52x = 979,066.50 × 387,184.36
  4. Step 4: Simplify right side
    709,453.52x = 379,079,236,199.94
  5. Step 5: Solve for x
    x = 379,079,236,199.94/709,453.52
  6. Step 6: Final answer
    x = 534,325.68

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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.