Home / 456,616.10-684,928.78-203,909.47

Finding the Fourth Proportional to 456,616.10, 684,928.78 and 203,909.47

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Solution

The fourth proportional to 456,616.10, 684,928.78 and 203,909.47 is: 305,866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,616.10 : 684,928.78 = 203,909.47 : x
  2. Step 2: Convert to fraction form
    456,616.10/684,928.78 = 203,909.47/x
  3. Step 3: Cross multiply
    456,616.10x = 684,928.78 × 203,909.47
  4. Step 4: Simplify right side
    456,616.10x = 139,663,462,295.45
  5. Step 5: Solve for x
    x = 139,663,462,295.45/456,616.10
  6. Step 6: Final answer
    x = 305,866.27

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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.