Home / 726,968.52-1,003,237.74-400,315.29

Finding the Fourth Proportional to 726,968.52, 1,003,237.74 and 400,315.29

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Solution

The fourth proportional to 726,968.52, 1,003,237.74 and 400,315.29 is: 552,446.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,968.52 : 1,003,237.74 = 400,315.29 : x
  2. Step 2: Convert to fraction form
    726,968.52/1,003,237.74 = 400,315.29/x
  3. Step 3: Cross multiply
    726,968.52x = 1,003,237.74 × 400,315.29
  4. Step 4: Simplify right side
    726,968.52x = 401,611,406,827.05
  5. Step 5: Solve for x
    x = 401,611,406,827.05/726,968.52
  6. Step 6: Final answer
    x = 552,446.77

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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.