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Finding the Fourth Proportional to 575,853.40, 863,780.10 and 347,530.60

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Solution

The fourth proportional to 575,853.40, 863,780.10 and 347,530.60 is: 521,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,853.40 : 863,780.10 = 347,530.60 : x
  2. Step 2: Convert to fraction form
    575,853.40/863,780.10 = 347,530.60/x
  3. Step 3: Cross multiply
    575,853.40x = 863,780.10 × 347,530.60
  4. Step 4: Simplify right side
    575,853.40x = 300,190,016,421.06
  5. Step 5: Solve for x
    x = 300,190,016,421.06/575,853.40
  6. Step 6: Final answer
    x = 521,295.90

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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.