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Finding the Fourth Proportional to 528,458.22, 729,812.97 and 494,603.46

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Solution

The fourth proportional to 528,458.22, 729,812.97 and 494,603.46 is: 683,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,458.22 : 729,812.97 = 494,603.46 : x
  2. Step 2: Convert to fraction form
    528,458.22/729,812.97 = 494,603.46/x
  3. Step 3: Cross multiply
    528,458.22x = 729,812.97 × 494,603.46
  4. Step 4: Simplify right side
    528,458.22x = 360,968,020,114.88
  5. Step 5: Solve for x
    x = 360,968,020,114.88/528,458.22
  6. Step 6: Final answer
    x = 683,058.77

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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.