Home / 916,731.80-1,374,768.30-317,531.60

Finding the Fourth Proportional to 916,731.80, 1,374,768.30 and 317,531.60

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Solution

The fourth proportional to 916,731.80, 1,374,768.30 and 317,531.60 is: 476,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,731.80 : 1,374,768.30 = 317,531.60 : x
  2. Step 2: Convert to fraction form
    916,731.80/1,374,768.30 = 317,531.60/x
  3. Step 3: Cross multiply
    916,731.80x = 1,374,768.30 × 317,531.60
  4. Step 4: Simplify right side
    916,731.80x = 436,532,377,928.28
  5. Step 5: Solve for x
    x = 436,532,377,928.28/916,731.80
  6. Step 6: Final answer
    x = 476,183.30

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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.