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Finding the Fourth Proportional to 559,852.38, 772,580.88 and 305,203.50

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Solution

The fourth proportional to 559,852.38, 772,580.88 and 305,203.50 is: 421,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,852.38 : 772,580.88 = 305,203.50 : x
  2. Step 2: Convert to fraction form
    559,852.38/772,580.88 = 305,203.50/x
  3. Step 3: Cross multiply
    559,852.38x = 772,580.88 × 305,203.50
  4. Step 4: Simplify right side
    559,852.38x = 235,794,388,609.08
  5. Step 5: Solve for x
    x = 235,794,388,609.08/559,852.38
  6. Step 6: Final answer
    x = 421,172.43

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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.