Home / 709,463.54-979,059.41-387,173.63

Finding the Fourth Proportional to 709,463.54, 979,059.41 and 387,173.63

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Solution

The fourth proportional to 709,463.54, 979,059.41 and 387,173.63 is: 534,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,463.54 : 979,059.41 = 387,173.63 : x
  2. Step 2: Convert to fraction form
    709,463.54/979,059.41 = 387,173.63/x
  3. Step 3: Cross multiply
    709,463.54x = 979,059.41 × 387,173.63
  4. Step 4: Simplify right side
    709,463.54x = 379,065,985,755.36
  5. Step 5: Solve for x
    x = 379,065,985,755.36/709,463.54
  6. Step 6: Final answer
    x = 534,299.46

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1.5x scale

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.