Home / 863,913.72-1,192,438.05-501,454.35

Finding the Fourth Proportional to 863,913.72, 1,192,438.05 and 501,454.35

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Solution

The fourth proportional to 863,913.72, 1,192,438.05 and 501,454.35 is: 692,144.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,913.72 : 1,192,438.05 = 501,454.35 : x
  2. Step 2: Convert to fraction form
    863,913.72/1,192,438.05 = 501,454.35/x
  3. Step 3: Cross multiply
    863,913.72x = 1,192,438.05 × 501,454.35
  4. Step 4: Simplify right side
    863,913.72x = 597,953,247,278.02
  5. Step 5: Solve for x
    x = 597,953,247,278.02/863,913.72
  6. Step 6: Final answer
    x = 692,144.64

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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.