Home / 525,009.74-787,820.45-221,385.29

Finding the Fourth Proportional to 525,009.74, 787,820.45 and 221,385.29

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Solution

The fourth proportional to 525,009.74, 787,820.45 and 221,385.29 is: 332,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,009.74 : 787,820.45 = 221,385.29 : x
  2. Step 2: Convert to fraction form
    525,009.74/787,820.45 = 221,385.29/x
  3. Step 3: Cross multiply
    525,009.74x = 787,820.45 × 221,385.29
  4. Step 4: Simplify right side
    525,009.74x = 174,411,853,745.15
  5. Step 5: Solve for x
    x = 174,411,853,745.15/525,009.74
  6. Step 6: Final answer
    x = 332,206.89

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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.