Home / 709,453.53-979,066.50-387,184.35

Finding the Fourth Proportional to 709,453.53, 979,066.50 and 387,184.35

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Solution

The fourth proportional to 709,453.53, 979,066.50 and 387,184.35 is: 534,325.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,453.53 : 979,066.50 = 387,184.35 : x
  2. Step 2: Convert to fraction form
    709,453.53/979,066.50 = 387,184.35/x
  3. Step 3: Cross multiply
    709,453.53x = 979,066.50 × 387,184.35
  4. Step 4: Simplify right side
    709,453.53x = 379,079,226,409.28
  5. Step 5: Solve for x
    x = 379,079,226,409.28/709,453.53
  6. Step 6: Final answer
    x = 534,325.66

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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.