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Finding the Fourth Proportional to 487,735.38, 730,656.18 and 359,418.54

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Solution

The fourth proportional to 487,735.38, 730,656.18 and 359,418.54 is: 538,430.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,735.38 : 730,656.18 = 359,418.54 : x
  2. Step 2: Convert to fraction form
    487,735.38/730,656.18 = 359,418.54/x
  3. Step 3: Cross multiply
    487,735.38x = 730,656.18 × 359,418.54
  4. Step 4: Simplify right side
    487,735.38x = 262,611,377,457.58
  5. Step 5: Solve for x
    x = 262,611,377,457.58/487,735.38
  6. Step 6: Final answer
    x = 538,430.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.