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Finding the Fourth Proportional to 693,200.20, 972,579.80 and 693,200.20

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Solution

The fourth proportional to 693,200.20, 972,579.80 and 693,200.20 is: 972,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,200.20 : 972,579.80 = 693,200.20 : x
  2. Step 2: Convert to fraction form
    693,200.20/972,579.80 = 693,200.20/x
  3. Step 3: Cross multiply
    693,200.20x = 972,579.80 × 693,200.20
  4. Step 4: Simplify right side
    693,200.20x = 674,192,511,875.96
  5. Step 5: Solve for x
    x = 674,192,511,875.96/693,200.20
  6. Step 6: Final answer
    x = 972,579.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.