Home / 1,238,924.96-1,709,509.20-729,728.72

Finding the Fourth Proportional to 1,238,924.96, 1,709,509.20 and 729,728.72

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Solution

The fourth proportional to 1,238,924.96, 1,709,509.20 and 729,728.72 is: 1,006,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,924.96 : 1,709,509.20 = 729,728.72 : x
  2. Step 2: Convert to fraction form
    1,238,924.96/1,709,509.20 = 729,728.72/x
  3. Step 3: Cross multiply
    1,238,924.96x = 1,709,509.20 × 729,728.72
  4. Step 4: Simplify right side
    1,238,924.96x = 1,247,477,960,344.22
  5. Step 5: Solve for x
    x = 1,247,477,960,344.22/1,238,924.96
  6. Step 6: Final answer
    x = 1,006,903.57

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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.