Home / 738,261.70-1,107,910.95-317,839.30

Finding the Fourth Proportional to 738,261.70, 1,107,910.95 and 317,839.30

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Solution

The fourth proportional to 738,261.70, 1,107,910.95 and 317,839.30 is: 476,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,261.70 : 1,107,910.95 = 317,839.30 : x
  2. Step 2: Convert to fraction form
    738,261.70/1,107,910.95 = 317,839.30/x
  3. Step 3: Cross multiply
    738,261.70x = 1,107,910.95 × 317,839.30
  4. Step 4: Simplify right side
    738,261.70x = 352,137,640,810.34
  5. Step 5: Solve for x
    x = 352,137,640,810.34/738,261.70
  6. Step 6: Final answer
    x = 476,982.13

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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.