Home / 420,965.60-631,697.52-154,912.94

Finding the Fourth Proportional to 420,965.60, 631,697.52 and 154,912.94

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Solution

The fourth proportional to 420,965.60, 631,697.52 and 154,912.94 is: 232,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,965.60 : 631,697.52 = 154,912.94 : x
  2. Step 2: Convert to fraction form
    420,965.60/631,697.52 = 154,912.94/x
  3. Step 3: Cross multiply
    420,965.60x = 631,697.52 × 154,912.94
  4. Step 4: Simplify right side
    420,965.60x = 97,858,120,013.91
  5. Step 5: Solve for x
    x = 97,858,120,013.91/420,965.60
  6. Step 6: Final answer
    x = 232,461.08

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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.