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Finding the Fourth Proportional to 559,619.76, 772,252.77 and 304,965.48

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Solution

The fourth proportional to 559,619.76, 772,252.77 and 304,965.48 is: 420,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,619.76 : 772,252.77 = 304,965.48 : x
  2. Step 2: Convert to fraction form
    559,619.76/772,252.77 = 304,965.48/x
  3. Step 3: Cross multiply
    559,619.76x = 772,252.77 × 304,965.48
  4. Step 4: Simplify right side
    559,619.76x = 235,510,436,684.38
  5. Step 5: Solve for x
    x = 235,510,436,684.38/559,619.76
  6. Step 6: Final answer
    x = 420,840.10

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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.