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Finding the Fourth Proportional to 507,485.25, 700,329.65 and 303,544.77

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Solution

The fourth proportional to 507,485.25, 700,329.65 and 303,544.77 is: 418,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,485.25 : 700,329.65 = 303,544.77 : x
  2. Step 2: Convert to fraction form
    507,485.25/700,329.65 = 303,544.77/x
  3. Step 3: Cross multiply
    507,485.25x = 700,329.65 × 303,544.77
  4. Step 4: Simplify right side
    507,485.25x = 212,581,398,389.47
  5. Step 5: Solve for x
    x = 212,581,398,389.47/507,485.25
  6. Step 6: Final answer
    x = 418,891.78

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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.