Home / 780,243.72-1,170,511.56-247,898.76

Finding the Fourth Proportional to 780,243.72, 1,170,511.56 and 247,898.76

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Solution

The fourth proportional to 780,243.72, 1,170,511.56 and 247,898.76 is: 371,894.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,243.72 : 1,170,511.56 = 247,898.76 : x
  2. Step 2: Convert to fraction form
    780,243.72/1,170,511.56 = 247,898.76/x
  3. Step 3: Cross multiply
    780,243.72x = 1,170,511.56 × 247,898.76
  4. Step 4: Simplify right side
    780,243.72x = 290,168,364,289.67
  5. Step 5: Solve for x
    x = 290,168,364,289.67/780,243.72
  6. Step 6: Final answer
    x = 371,894.52

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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.