Home / 879,474.14-1,213,694.85-492,279.93

Finding the Fourth Proportional to 879,474.14, 1,213,694.85 and 492,279.93

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Solution

The fourth proportional to 879,474.14, 1,213,694.85 and 492,279.93 is: 679,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,474.14 : 1,213,694.85 = 492,279.93 : x
  2. Step 2: Convert to fraction form
    879,474.14/1,213,694.85 = 492,279.93/x
  3. Step 3: Cross multiply
    879,474.14x = 1,213,694.85 × 492,279.93
  4. Step 4: Simplify right side
    879,474.14x = 597,477,617,645.41
  5. Step 5: Solve for x
    x = 597,477,617,645.41/879,474.14
  6. Step 6: Final answer
    x = 679,357.80

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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.