Home / 879,819.11-1,319,733.06-311,200.74

Finding the Fourth Proportional to 879,819.11, 1,319,733.06 and 311,200.74

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Solution

The fourth proportional to 879,819.11, 1,319,733.06 and 311,200.74 is: 466,802.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,819.11 : 1,319,733.06 = 311,200.74 : x
  2. Step 2: Convert to fraction form
    879,819.11/1,319,733.06 = 311,200.74/x
  3. Step 3: Cross multiply
    879,819.11x = 1,319,733.06 × 311,200.74
  4. Step 4: Simplify right side
    879,819.11x = 410,701,902,742.14
  5. Step 5: Solve for x
    x = 410,701,902,742.14/879,819.11
  6. Step 6: Final answer
    x = 466,802.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.