Home / 729,464.81-1,006,829.39-427,756.01

Finding the Fourth Proportional to 729,464.81, 1,006,829.39 and 427,756.01

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Solution

The fourth proportional to 729,464.81, 1,006,829.39 and 427,756.01 is: 590,401.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,464.81 : 1,006,829.39 = 427,756.01 : x
  2. Step 2: Convert to fraction form
    729,464.81/1,006,829.39 = 427,756.01/x
  3. Step 3: Cross multiply
    729,464.81x = 1,006,829.39 × 427,756.01
  4. Step 4: Simplify right side
    729,464.81x = 430,677,322,617.13
  5. Step 5: Solve for x
    x = 430,677,322,617.13/729,464.81
  6. Step 6: Final answer
    x = 590,401.78

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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.