Home / 520,199.18-780,298.78-146,222.18

Finding the Fourth Proportional to 520,199.18, 780,298.78 and 146,222.18

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Solution

The fourth proportional to 520,199.18, 780,298.78 and 146,222.18 is: 219,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,199.18 : 780,298.78 = 146,222.18 : x
  2. Step 2: Convert to fraction form
    520,199.18/780,298.78 = 146,222.18/x
  3. Step 3: Cross multiply
    520,199.18x = 780,298.78 × 146,222.18
  4. Step 4: Simplify right side
    520,199.18x = 114,096,988,662.94
  5. Step 5: Solve for x
    x = 114,096,988,662.94/520,199.18
  6. Step 6: Final answer
    x = 219,333.27

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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.