Home / 498,841.20-688,627.26-317,801.34

Finding the Fourth Proportional to 498,841.20, 688,627.26 and 317,801.34

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Solution

The fourth proportional to 498,841.20, 688,627.26 and 317,801.34 is: 438,710.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,841.20 : 688,627.26 = 317,801.34 : x
  2. Step 2: Convert to fraction form
    498,841.20/688,627.26 = 317,801.34/x
  3. Step 3: Cross multiply
    498,841.20x = 688,627.26 × 317,801.34
  4. Step 4: Simplify right side
    498,841.20x = 218,846,665,988.53
  5. Step 5: Solve for x
    x = 218,846,665,988.53/498,841.20
  6. Step 6: Final answer
    x = 438,710.09

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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.