Home / 684,429.60-1,027,810.80-486,141.60

Finding the Fourth Proportional to 684,429.60, 1,027,810.80 and 486,141.60

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Solution

The fourth proportional to 684,429.60, 1,027,810.80 and 486,141.60 is: 730,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,429.60 : 1,027,810.80 = 486,141.60 : x
  2. Step 2: Convert to fraction form
    684,429.60/1,027,810.80 = 486,141.60/x
  3. Step 3: Cross multiply
    684,429.60x = 1,027,810.80 × 486,141.60
  4. Step 4: Simplify right side
    684,429.60x = 499,661,586,809.28
  5. Step 5: Solve for x
    x = 499,661,586,809.28/684,429.60
  6. Step 6: Final answer
    x = 730,040.88

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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.