Home / 852,533.76-1,278,770.40-212,841.12

Finding the Fourth Proportional to 852,533.76, 1,278,770.40 and 212,841.12

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Solution

The fourth proportional to 852,533.76, 1,278,770.40 and 212,841.12 is: 319,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,533.76 : 1,278,770.40 = 212,841.12 : x
  2. Step 2: Convert to fraction form
    852,533.76/1,278,770.40 = 212,841.12/x
  3. Step 3: Cross multiply
    852,533.76x = 1,278,770.40 × 212,841.12
  4. Step 4: Simplify right side
    852,533.76x = 272,174,924,158.85
  5. Step 5: Solve for x
    x = 272,174,924,158.85/852,533.76
  6. Step 6: Final answer
    x = 319,254.13

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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.