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Finding the Fourth Proportional to 507,253.38, 700,009.86 and 280,898.88

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Solution

The fourth proportional to 507,253.38, 700,009.86 and 280,898.88 is: 387,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,253.38 : 700,009.86 = 280,898.88 : x
  2. Step 2: Convert to fraction form
    507,253.38/700,009.86 = 280,898.88/x
  3. Step 3: Cross multiply
    507,253.38x = 700,009.86 × 280,898.88
  4. Step 4: Simplify right side
    507,253.38x = 196,631,985,662.96
  5. Step 5: Solve for x
    x = 196,631,985,662.96/507,253.38
  6. Step 6: Final answer
    x = 387,640.56

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1.5x scale

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.