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Finding the Fourth Proportional to 559,529.88, 772,151.40 and 304,881.18

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Solution

The fourth proportional to 559,529.88, 772,151.40 and 304,881.18 is: 420,736.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,529.88 : 772,151.40 = 304,881.18 : x
  2. Step 2: Convert to fraction form
    559,529.88/772,151.40 = 304,881.18/x
  3. Step 3: Cross multiply
    559,529.88x = 772,151.40 × 304,881.18
  4. Step 4: Simplify right side
    559,529.88x = 235,414,429,970.65
  5. Step 5: Solve for x
    x = 235,414,429,970.65/559,529.88
  6. Step 6: Final answer
    x = 420,736.12

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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.