Home / 879,473.95-1,213,694.60-492,279.74

Finding the Fourth Proportional to 879,473.95, 1,213,694.60 and 492,279.74

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Solution

The fourth proportional to 879,473.95, 1,213,694.60 and 492,279.74 is: 679,357.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,473.95 : 1,213,694.60 = 492,279.74 : x
  2. Step 2: Convert to fraction form
    879,473.95/1,213,694.60 = 492,279.74/x
  3. Step 3: Cross multiply
    879,473.95x = 1,213,694.60 × 492,279.74
  4. Step 4: Simplify right side
    879,473.95x = 597,477,258,148.89
  5. Step 5: Solve for x
    x = 597,477,258,148.89/879,473.95
  6. Step 6: Final answer
    x = 679,357.54

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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.