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Finding the Fourth Proportional to 507,747.92, 761,620.48 and 128,667.56

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Solution

The fourth proportional to 507,747.92, 761,620.48 and 128,667.56 is: 193,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,747.92 : 761,620.48 = 128,667.56 : x
  2. Step 2: Convert to fraction form
    507,747.92/761,620.48 = 128,667.56/x
  3. Step 3: Cross multiply
    507,747.92x = 761,620.48 × 128,667.56
  4. Step 4: Simplify right side
    507,747.92x = 97,995,844,677.86
  5. Step 5: Solve for x
    x = 97,995,844,677.86/507,747.92
  6. Step 6: Final answer
    x = 193,000.98

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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.