Home / 726,956.64-1,003,209.71-400,307.94

Finding the Fourth Proportional to 726,956.64, 1,003,209.71 and 400,307.94

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Solution

The fourth proportional to 726,956.64, 1,003,209.71 and 400,307.94 is: 552,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,956.64 : 1,003,209.71 = 400,307.94 : x
  2. Step 2: Convert to fraction form
    726,956.64/1,003,209.71 = 400,307.94/x
  3. Step 3: Cross multiply
    726,956.64x = 1,003,209.71 × 400,307.94
  4. Step 4: Simplify right side
    726,956.64x = 401,592,810,396.56
  5. Step 5: Solve for x
    x = 401,592,810,396.56/726,956.64
  6. Step 6: Final answer
    x = 552,430.21

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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.