Home / 915,635.80-1,374,109.80-515,852.20

Finding the Fourth Proportional to 915,635.80, 1,374,109.80 and 515,852.20

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Solution

The fourth proportional to 915,635.80, 1,374,109.80 and 515,852.20 is: 774,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,635.80 : 1,374,109.80 = 515,852.20 : x
  2. Step 2: Convert to fraction form
    915,635.80/1,374,109.80 = 515,852.20/x
  3. Step 3: Cross multiply
    915,635.80x = 1,374,109.80 × 515,852.20
  4. Step 4: Simplify right side
    915,635.80x = 708,837,563,371.56
  5. Step 5: Solve for x
    x = 708,837,563,371.56/915,635.80
  6. Step 6: Final answer
    x = 774,147.93

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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.