Home / 647,458.20-971,187.30-332,530.20

Finding the Fourth Proportional to 647,458.20, 971,187.30 and 332,530.20

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Solution

The fourth proportional to 647,458.20, 971,187.30 and 332,530.20 is: 498,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,458.20 : 971,187.30 = 332,530.20 : x
  2. Step 2: Convert to fraction form
    647,458.20/971,187.30 = 332,530.20/x
  3. Step 3: Cross multiply
    647,458.20x = 971,187.30 × 332,530.20
  4. Step 4: Simplify right side
    647,458.20x = 322,949,107,106.46
  5. Step 5: Solve for x
    x = 322,949,107,106.46/647,458.20
  6. Step 6: Final answer
    x = 498,795.30

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Similar ratio
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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.