Home / 781,239.86-1,170,647.67-541,820.77

Finding the Fourth Proportional to 781,239.86, 1,170,647.67 and 541,820.77

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Solution

The fourth proportional to 781,239.86, 1,170,647.67 and 541,820.77 is: 811,890.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,239.86 : 1,170,647.67 = 541,820.77 : x
  2. Step 2: Convert to fraction form
    781,239.86/1,170,647.67 = 541,820.77/x
  3. Step 3: Cross multiply
    781,239.86x = 1,170,647.67 × 541,820.77
  4. Step 4: Simplify right side
    781,239.86x = 634,281,216,104.87
  5. Step 5: Solve for x
    x = 634,281,216,104.87/781,239.86
  6. Step 6: Final answer
    x = 811,890.50

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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.