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Finding the Fourth Proportional to 991,801.80, 1,487,702.70 and 593,670.60

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Solution

The fourth proportional to 991,801.80, 1,487,702.70 and 593,670.60 is: 890,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,801.80 : 1,487,702.70 = 593,670.60 : x
  2. Step 2: Convert to fraction form
    991,801.80/1,487,702.70 = 593,670.60/x
  3. Step 3: Cross multiply
    991,801.80x = 1,487,702.70 × 593,670.60
  4. Step 4: Simplify right side
    991,801.80x = 883,205,354,530.62
  5. Step 5: Solve for x
    x = 883,205,354,530.62/991,801.80
  6. Step 6: Final answer
    x = 890,505.90

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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.