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Finding the Fourth Proportional to 724,244.40, 999,410.67 and 401,954.70

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Solution

The fourth proportional to 724,244.40, 999,410.67 and 401,954.70 is: 554,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,244.40 : 999,410.67 = 401,954.70 : x
  2. Step 2: Convert to fraction form
    724,244.40/999,410.67 = 401,954.70/x
  3. Step 3: Cross multiply
    724,244.40x = 999,410.67 × 401,954.70
  4. Step 4: Simplify right side
    724,244.40x = 401,717,816,036.65
  5. Step 5: Solve for x
    x = 401,717,816,036.65/724,244.40
  6. Step 6: Final answer
    x = 554,671.62

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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.