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Finding the Fourth Proportional to 523,870.02, 723,027.60 and 309,062.88

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Solution

The fourth proportional to 523,870.02, 723,027.60 and 309,062.88 is: 426,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,870.02 : 723,027.60 = 309,062.88 : x
  2. Step 2: Convert to fraction form
    523,870.02/723,027.60 = 309,062.88/x
  3. Step 3: Cross multiply
    523,870.02x = 723,027.60 × 309,062.88
  4. Step 4: Simplify right side
    523,870.02x = 223,460,992,375.49
  5. Step 5: Solve for x
    x = 223,460,992,375.49/523,870.02
  6. Step 6: Final answer
    x = 426,558.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.