Home / 684,278.40-1,027,000.80-305,781.60

Finding the Fourth Proportional to 684,278.40, 1,027,000.80 and 305,781.60

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Solution

The fourth proportional to 684,278.40, 1,027,000.80 and 305,781.60 is: 458,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,278.40 : 1,027,000.80 = 305,781.60 : x
  2. Step 2: Convert to fraction form
    684,278.40/1,027,000.80 = 305,781.60/x
  3. Step 3: Cross multiply
    684,278.40x = 1,027,000.80 × 305,781.60
  4. Step 4: Simplify right side
    684,278.40x = 314,037,947,825.28
  5. Step 5: Solve for x
    x = 314,037,947,825.28/684,278.40
  6. Step 6: Final answer
    x = 458,933.01

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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.