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Finding the Fourth Proportional to 559,440.69, 772,028.24 and 304,791.88

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Solution

The fourth proportional to 559,440.69, 772,028.24 and 304,791.88 is: 420,612.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,440.69 : 772,028.24 = 304,791.88 : x
  2. Step 2: Convert to fraction form
    559,440.69/772,028.24 = 304,791.88/x
  3. Step 3: Cross multiply
    559,440.69x = 772,028.24 × 304,791.88
  4. Step 4: Simplify right side
    559,440.69x = 235,307,938,682.69
  5. Step 5: Solve for x
    x = 235,307,938,682.69/559,440.69
  6. Step 6: Final answer
    x = 420,612.84

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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.