Home / 753,778.50-1,130,710.85-213,992.56

Finding the Fourth Proportional to 753,778.50, 1,130,710.85 and 213,992.56

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Solution

The fourth proportional to 753,778.50, 1,130,710.85 and 213,992.56 is: 321,001.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,778.50 : 1,130,710.85 = 213,992.56 : x
  2. Step 2: Convert to fraction form
    753,778.50/1,130,710.85 = 213,992.56/x
  3. Step 3: Cross multiply
    753,778.50x = 1,130,710.85 × 213,992.56
  4. Step 4: Simplify right side
    753,778.50x = 241,963,709,411.28
  5. Step 5: Solve for x
    x = 241,963,709,411.28/753,778.50
  6. Step 6: Final answer
    x = 321,001.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.