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Finding the Fourth Proportional to 528,065.84, 728,769.48 and 301,706.48

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Solution

The fourth proportional to 528,065.84, 728,769.48 and 301,706.48 is: 416,377.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,065.84 : 728,769.48 = 301,706.48 : x
  2. Step 2: Convert to fraction form
    528,065.84/728,769.48 = 301,706.48/x
  3. Step 3: Cross multiply
    528,065.84x = 728,769.48 × 301,706.48
  4. Step 4: Simplify right side
    528,065.84x = 219,874,474,542.23
  5. Step 5: Solve for x
    x = 219,874,474,542.23/528,065.84
  6. Step 6: Final answer
    x = 416,377.01

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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.