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Finding the Fourth Proportional to 559,453.80, 772,055.10 and 304,804.92

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Solution

The fourth proportional to 559,453.80, 772,055.10 and 304,804.92 is: 420,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,453.80 : 772,055.10 = 304,804.92 : x
  2. Step 2: Convert to fraction form
    559,453.80/772,055.10 = 304,804.92/x
  3. Step 3: Cross multiply
    559,453.80x = 772,055.10 × 304,804.92
  4. Step 4: Simplify right side
    559,453.80x = 235,326,192,991.09
  5. Step 5: Solve for x
    x = 235,326,192,991.09/559,453.80
  6. Step 6: Final answer
    x = 420,635.61

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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.