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Finding the Fourth Proportional to 547,707.65, 821,437.27 and 247,990.37

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Solution

The fourth proportional to 547,707.65, 821,437.27 and 247,990.37 is: 371,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,707.65 : 821,437.27 = 247,990.37 : x
  2. Step 2: Convert to fraction form
    547,707.65/821,437.27 = 247,990.37/x
  3. Step 3: Cross multiply
    547,707.65x = 821,437.27 × 247,990.37
  4. Step 4: Simplify right side
    547,707.65x = 203,708,532,519.09
  5. Step 5: Solve for x
    x = 203,708,532,519.09/547,707.65
  6. Step 6: Final answer
    x = 371,929.32

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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.