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Finding the Fourth Proportional to 575,291.54, 863,061.86 and 220,305.57

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Solution

The fourth proportional to 575,291.54, 863,061.86 and 220,305.57 is: 330,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,291.54 : 863,061.86 = 220,305.57 : x
  2. Step 2: Convert to fraction form
    575,291.54/863,061.86 = 220,305.57/x
  3. Step 3: Cross multiply
    575,291.54x = 863,061.86 × 220,305.57
  4. Step 4: Simplify right side
    575,291.54x = 190,137,333,911.03
  5. Step 5: Solve for x
    x = 190,137,333,911.03/575,291.54
  6. Step 6: Final answer
    x = 330,506.05

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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.