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Finding the Fourth Proportional to 575,999.60, 863,999.40 and 281,087.60

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Solution

The fourth proportional to 575,999.60, 863,999.40 and 281,087.60 is: 421,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,999.60 : 863,999.40 = 281,087.60 : x
  2. Step 2: Convert to fraction form
    575,999.60/863,999.40 = 281,087.60/x
  3. Step 3: Cross multiply
    575,999.60x = 863,999.40 × 281,087.60
  4. Step 4: Simplify right side
    575,999.60x = 242,859,517,747.44
  5. Step 5: Solve for x
    x = 242,859,517,747.44/575,999.60
  6. Step 6: Final answer
    x = 421,631.40

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1.5x scale

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.