Home / 858,777.30-1,287,064.35-479,697.30

Finding the Fourth Proportional to 858,777.30, 1,287,064.35 and 479,697.30

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Solution

The fourth proportional to 858,777.30, 1,287,064.35 and 479,697.30 is: 718,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,777.30 : 1,287,064.35 = 479,697.30 : x
  2. Step 2: Convert to fraction form
    858,777.30/1,287,064.35 = 479,697.30/x
  3. Step 3: Cross multiply
    858,777.30x = 1,287,064.35 × 479,697.30
  4. Step 4: Simplify right side
    858,777.30x = 617,401,293,621.26
  5. Step 5: Solve for x
    x = 617,401,293,621.26/858,777.30
  6. Step 6: Final answer
    x = 718,930.62

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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.