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Finding the Fourth Proportional to 487,170.40, 730,064.40 and 359,816.80

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Solution

The fourth proportional to 487,170.40, 730,064.40 and 359,816.80 is: 539,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,170.40 : 730,064.40 = 359,816.80 : x
  2. Step 2: Convert to fraction form
    487,170.40/730,064.40 = 359,816.80/x
  3. Step 3: Cross multiply
    487,170.40x = 730,064.40 × 359,816.80
  4. Step 4: Simplify right side
    487,170.40x = 262,689,436,201.92
  5. Step 5: Solve for x
    x = 262,689,436,201.92/487,170.40
  6. Step 6: Final answer
    x = 539,214.69

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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.