Home / 456,669.54-684,479.43-306,728.82

Finding the Fourth Proportional to 456,669.54, 684,479.43 and 306,728.82

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Solution

The fourth proportional to 456,669.54, 684,479.43 and 306,728.82 is: 459,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,669.54 : 684,479.43 = 306,728.82 : x
  2. Step 2: Convert to fraction form
    456,669.54/684,479.43 = 306,728.82/x
  3. Step 3: Cross multiply
    456,669.54x = 684,479.43 × 306,728.82
  4. Step 4: Simplify right side
    456,669.54x = 209,949,567,878.17
  5. Step 5: Solve for x
    x = 209,949,567,878.17/456,669.54
  6. Step 6: Final answer
    x = 459,740.69

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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.