Home / 724,309.60-1,086,464.40-456,620.80

Finding the Fourth Proportional to 724,309.60, 1,086,464.40 and 456,620.80

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Solution

The fourth proportional to 724,309.60, 1,086,464.40 and 456,620.80 is: 684,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,309.60 : 1,086,464.40 = 456,620.80 : x
  2. Step 2: Convert to fraction form
    724,309.60/1,086,464.40 = 456,620.80/x
  3. Step 3: Cross multiply
    724,309.60x = 1,086,464.40 × 456,620.80
  4. Step 4: Simplify right side
    724,309.60x = 496,102,243,499.52
  5. Step 5: Solve for x
    x = 496,102,243,499.52/724,309.60
  6. Step 6: Final answer
    x = 684,931.20

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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.