Home / 879,624.25-1,213,255.55-807,260.87

Finding the Fourth Proportional to 879,624.25, 1,213,255.55 and 807,260.87

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Solution

The fourth proportional to 879,624.25, 1,213,255.55 and 807,260.87 is: 1,113,445.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,624.25 : 1,213,255.55 = 807,260.87 : x
  2. Step 2: Convert to fraction form
    879,624.25/1,213,255.55 = 807,260.87/x
  3. Step 3: Cross multiply
    879,624.25x = 1,213,255.55 × 807,260.87
  4. Step 4: Simplify right side
    879,624.25x = 979,413,735,876.62
  5. Step 5: Solve for x
    x = 979,413,735,876.62/879,624.25
  6. Step 6: Final answer
    x = 1,113,445.59

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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.