Home / 724,439.80-1,086,659.70-545,980.60

Finding the Fourth Proportional to 724,439.80, 1,086,659.70 and 545,980.60

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Solution

The fourth proportional to 724,439.80, 1,086,659.70 and 545,980.60 is: 818,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,439.80 : 1,086,659.70 = 545,980.60 : x
  2. Step 2: Convert to fraction form
    724,439.80/1,086,659.70 = 545,980.60/x
  3. Step 3: Cross multiply
    724,439.80x = 1,086,659.70 × 545,980.60
  4. Step 4: Simplify right side
    724,439.80x = 593,295,115,001.82
  5. Step 5: Solve for x
    x = 593,295,115,001.82/724,439.80
  6. Step 6: Final answer
    x = 818,970.90

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1.5x scale

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.