Home / 804,745.80-1,207,118.70-243,780.30

Finding the Fourth Proportional to 804,745.80, 1,207,118.70 and 243,780.30

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Solution

The fourth proportional to 804,745.80, 1,207,118.70 and 243,780.30 is: 365,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,745.80 : 1,207,118.70 = 243,780.30 : x
  2. Step 2: Convert to fraction form
    804,745.80/1,207,118.70 = 243,780.30/x
  3. Step 3: Cross multiply
    804,745.80x = 1,207,118.70 × 243,780.30
  4. Step 4: Simplify right side
    804,745.80x = 294,271,758,821.61
  5. Step 5: Solve for x
    x = 294,271,758,821.61/804,745.80
  6. Step 6: Final answer
    x = 365,670.45

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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.