Home / 813,240.68-1,219,461.20-333,338.42

Finding the Fourth Proportional to 813,240.68, 1,219,461.20 and 333,338.42

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Solution

The fourth proportional to 813,240.68, 1,219,461.20 and 333,338.42 is: 499,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,240.68 : 1,219,461.20 = 333,338.42 : x
  2. Step 2: Convert to fraction form
    813,240.68/1,219,461.20 = 333,338.42/x
  3. Step 3: Cross multiply
    813,240.68x = 1,219,461.20 × 333,338.42
  4. Step 4: Simplify right side
    813,240.68x = 406,493,264,395.34
  5. Step 5: Solve for x
    x = 406,493,264,395.34/813,240.68
  6. Step 6: Final answer
    x = 499,843.74

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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.