Home / 724,365.24-999,517.46-402,077.80

Finding the Fourth Proportional to 724,365.24, 999,517.46 and 402,077.80

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Solution

The fourth proportional to 724,365.24, 999,517.46 and 402,077.80 is: 554,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,365.24 : 999,517.46 = 402,077.80 : x
  2. Step 2: Convert to fraction form
    724,365.24/999,517.46 = 402,077.80/x
  3. Step 3: Cross multiply
    724,365.24x = 999,517.46 × 402,077.80
  4. Step 4: Simplify right side
    724,365.24x = 401,883,781,378.39
  5. Step 5: Solve for x
    x = 401,883,781,378.39/724,365.24
  6. Step 6: Final answer
    x = 554,808.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.