Home / 509,723.48-703,436.40-280,298.27

Finding the Fourth Proportional to 509,723.48, 703,436.40 and 280,298.27

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Solution

The fourth proportional to 509,723.48, 703,436.40 and 280,298.27 is: 386,821.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,723.48 : 703,436.40 = 280,298.27 : x
  2. Step 2: Convert to fraction form
    509,723.48/703,436.40 = 280,298.27/x
  3. Step 3: Cross multiply
    509,723.48x = 703,436.40 × 280,298.27
  4. Step 4: Simplify right side
    509,723.48x = 197,172,007,733.62
  5. Step 5: Solve for x
    x = 197,172,007,733.62/509,723.48
  6. Step 6: Final answer
    x = 386,821.51

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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.