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Finding the Fourth Proportional to 559,957.84, 772,725 and 305,314

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Solution

The fourth proportional to 559,957.84, 772,725 and 305,314 is: 421,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,957.84 : 772,725 = 305,314 : x
  2. Step 2: Convert to fraction form
    559,957.84/772,725 = 305,314/x
  3. Step 3: Cross multiply
    559,957.84x = 772,725 × 305,314
  4. Step 4: Simplify right side
    559,957.84x = 235,923,760,650
  5. Step 5: Solve for x
    x = 235,923,760,650/559,957.84
  6. Step 6: Final answer
    x = 421,324.15

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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.