Home / 871,635.12-1,306,703.76-302,942.32

Finding the Fourth Proportional to 871,635.12, 1,306,703.76 and 302,942.32

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Solution

The fourth proportional to 871,635.12, 1,306,703.76 and 302,942.32 is: 454,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,635.12 : 1,306,703.76 = 302,942.32 : x
  2. Step 2: Convert to fraction form
    871,635.12/1,306,703.76 = 302,942.32/x
  3. Step 3: Cross multiply
    871,635.12x = 1,306,703.76 × 302,942.32
  4. Step 4: Simplify right side
    871,635.12x = 395,855,868,607.12
  5. Step 5: Solve for x
    x = 395,855,868,607.12/871,635.12
  6. Step 6: Final answer
    x = 454,153.19

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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.