Home / 785,872.20-1,178,808.30-470,166.60

Finding the Fourth Proportional to 785,872.20, 1,178,808.30 and 470,166.60

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Solution

The fourth proportional to 785,872.20, 1,178,808.30 and 470,166.60 is: 705,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,872.20 : 1,178,808.30 = 470,166.60 : x
  2. Step 2: Convert to fraction form
    785,872.20/1,178,808.30 = 470,166.60/x
  3. Step 3: Cross multiply
    785,872.20x = 1,178,808.30 × 470,166.60
  4. Step 4: Simplify right side
    785,872.20x = 554,236,290,462.78
  5. Step 5: Solve for x
    x = 554,236,290,462.78/785,872.20
  6. Step 6: Final answer
    x = 705,249.90

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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.