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Finding the Fourth Proportional to 559,625.28, 772,281.72 and 304,975.86

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Solution

The fourth proportional to 559,625.28, 772,281.72 and 304,975.86 is: 420,866.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,625.28 : 772,281.72 = 304,975.86 : x
  2. Step 2: Convert to fraction form
    559,625.28/772,281.72 = 304,975.86/x
  3. Step 3: Cross multiply
    559,625.28x = 772,281.72 × 304,975.86
  4. Step 4: Simplify right side
    559,625.28x = 235,527,281,719.28
  5. Step 5: Solve for x
    x = 235,527,281,719.28/559,625.28
  6. Step 6: Final answer
    x = 420,866.05

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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.