Home / 724,605.20-1,086,907.80-457,499.60

Finding the Fourth Proportional to 724,605.20, 1,086,907.80 and 457,499.60

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Solution

The fourth proportional to 724,605.20, 1,086,907.80 and 457,499.60 is: 686,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,605.20 : 1,086,907.80 = 457,499.60 : x
  2. Step 2: Convert to fraction form
    724,605.20/1,086,907.80 = 457,499.60/x
  3. Step 3: Cross multiply
    724,605.20x = 1,086,907.80 × 457,499.60
  4. Step 4: Simplify right side
    724,605.20x = 497,259,883,736.88
  5. Step 5: Solve for x
    x = 497,259,883,736.88/724,605.20
  6. Step 6: Final answer
    x = 686,249.40

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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.