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Finding the Fourth Proportional to 520,812.48, 779,944.77 and 470,325.60

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Solution

The fourth proportional to 520,812.48, 779,944.77 and 470,325.60 is: 704,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,812.48 : 779,944.77 = 470,325.60 : x
  2. Step 2: Convert to fraction form
    520,812.48/779,944.77 = 470,325.60/x
  3. Step 3: Cross multiply
    520,812.48x = 779,944.77 × 470,325.60
  4. Step 4: Simplify right side
    520,812.48x = 366,827,991,917.11
  5. Step 5: Solve for x
    x = 366,827,991,917.11/520,812.48
  6. Step 6: Final answer
    x = 704,337.95

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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.