Home / 509,441.23-703,036.20-280,019.73

Finding the Fourth Proportional to 509,441.23, 703,036.20 and 280,019.73

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Solution

The fourth proportional to 509,441.23, 703,036.20 and 280,019.73 is: 386,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,441.23 : 703,036.20 = 280,019.73 : x
  2. Step 2: Convert to fraction form
    509,441.23/703,036.20 = 280,019.73/x
  3. Step 3: Cross multiply
    509,441.23x = 703,036.20 × 280,019.73
  4. Step 4: Simplify right side
    509,441.23x = 196,864,006,904.23
  5. Step 5: Solve for x
    x = 196,864,006,904.23/509,441.23
  6. Step 6: Final answer
    x = 386,431.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.