Home / 666,240.18-997,758.90-381,066.48

Finding the Fourth Proportional to 666,240.18, 997,758.90 and 381,066.48

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Solution

The fourth proportional to 666,240.18, 997,758.90 and 381,066.48 is: 570,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,240.18 : 997,758.90 = 381,066.48 : x
  2. Step 2: Convert to fraction form
    666,240.18/997,758.90 = 381,066.48/x
  3. Step 3: Cross multiply
    666,240.18x = 997,758.90 × 381,066.48
  4. Step 4: Simplify right side
    666,240.18x = 380,212,471,911.67
  5. Step 5: Solve for x
    x = 380,212,471,911.67/666,240.18
  6. Step 6: Final answer
    x = 570,683.79

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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.