Home / 452,818.12-678,929.08-253,432.84

Finding the Fourth Proportional to 452,818.12, 678,929.08 and 253,432.84

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Solution

The fourth proportional to 452,818.12, 678,929.08 and 253,432.84 is: 379,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,818.12 : 678,929.08 = 253,432.84 : x
  2. Step 2: Convert to fraction form
    452,818.12/678,929.08 = 253,432.84/x
  3. Step 3: Cross multiply
    452,818.12x = 678,929.08 × 253,432.84
  4. Step 4: Simplify right side
    452,818.12x = 172,062,924,902.99
  5. Step 5: Solve for x
    x = 172,062,924,902.99/452,818.12
  6. Step 6: Final answer
    x = 379,982.42

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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.