Home / 876,808.80-1,315,213.20-285,832.80

Finding the Fourth Proportional to 876,808.80, 1,315,213.20 and 285,832.80

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Solution

The fourth proportional to 876,808.80, 1,315,213.20 and 285,832.80 is: 428,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,808.80 : 1,315,213.20 = 285,832.80 : x
  2. Step 2: Convert to fraction form
    876,808.80/1,315,213.20 = 285,832.80/x
  3. Step 3: Cross multiply
    876,808.80x = 1,315,213.20 × 285,832.80
  4. Step 4: Simplify right side
    876,808.80x = 375,931,071,552.96
  5. Step 5: Solve for x
    x = 375,931,071,552.96/876,808.80
  6. Step 6: Final answer
    x = 428,749.20

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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.