Home / 927,200.80-1,390,801.20-328,157.20

Finding the Fourth Proportional to 927,200.80, 1,390,801.20 and 328,157.20

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Solution

The fourth proportional to 927,200.80, 1,390,801.20 and 328,157.20 is: 492,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,200.80 : 1,390,801.20 = 328,157.20 : x
  2. Step 2: Convert to fraction form
    927,200.80/1,390,801.20 = 328,157.20/x
  3. Step 3: Cross multiply
    927,200.80x = 1,390,801.20 × 328,157.20
  4. Step 4: Simplify right side
    927,200.80x = 456,401,427,548.64
  5. Step 5: Solve for x
    x = 456,401,427,548.64/927,200.80
  6. Step 6: Final answer
    x = 492,235.80

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Double scale
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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.