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Finding the Fourth Proportional to 559,629.84, 772,287.84 and 304,980.36

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Solution

The fourth proportional to 559,629.84, 772,287.84 and 304,980.36 is: 420,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,629.84 : 772,287.84 = 304,980.36 : x
  2. Step 2: Convert to fraction form
    559,629.84/772,287.84 = 304,980.36/x
  3. Step 3: Cross multiply
    559,629.84x = 772,287.84 × 304,980.36
  4. Step 4: Simplify right side
    559,629.84x = 235,532,623,466.82
  5. Step 5: Solve for x
    x = 235,532,623,466.82/559,629.84
  6. Step 6: Final answer
    x = 420,872.17

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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.