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Finding the Fourth Proportional to 520,129.40, 779,027.70 and 520,129.40

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Solution

The fourth proportional to 520,129.40, 779,027.70 and 520,129.40 is: 779,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,129.40 : 779,027.70 = 520,129.40 : x
  2. Step 2: Convert to fraction form
    520,129.40/779,027.70 = 520,129.40/x
  3. Step 3: Cross multiply
    520,129.40x = 779,027.70 × 520,129.40
  4. Step 4: Simplify right side
    520,129.40x = 405,195,210,184.38
  5. Step 5: Solve for x
    x = 405,195,210,184.38/520,129.40
  6. Step 6: Final answer
    x = 779,027.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.