Home / 729,465.18-1,006,829.91-427,756.38

Finding the Fourth Proportional to 729,465.18, 1,006,829.91 and 427,756.38

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Solution

The fourth proportional to 729,465.18, 1,006,829.91 and 427,756.38 is: 590,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,465.18 : 1,006,829.91 = 427,756.38 : x
  2. Step 2: Convert to fraction form
    729,465.18/1,006,829.91 = 427,756.38/x
  3. Step 3: Cross multiply
    729,465.18x = 1,006,829.91 × 427,756.38
  4. Step 4: Simplify right side
    729,465.18x = 430,677,917,577.33
  5. Step 5: Solve for x
    x = 430,677,917,577.33/729,465.18
  6. Step 6: Final answer
    x = 590,402.30

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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.