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Finding the Fourth Proportional to 724,162.97, 999,345.45 and 401,873.31

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Solution

The fourth proportional to 724,162.97, 999,345.45 and 401,873.31 is: 554,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,162.97 : 999,345.45 = 401,873.31 : x
  2. Step 2: Convert to fraction form
    724,162.97/999,345.45 = 401,873.31/x
  3. Step 3: Cross multiply
    724,162.97x = 999,345.45 × 401,873.31
  4. Step 4: Simplify right side
    724,162.97x = 401,610,263,824.94
  5. Step 5: Solve for x
    x = 401,610,263,824.94/724,162.97
  6. Step 6: Final answer
    x = 554,585.48

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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.