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Finding the Fourth Proportional to 487,166.40, 730,058.40 and 359,812.80

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Solution

The fourth proportional to 487,166.40, 730,058.40 and 359,812.80 is: 539,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,166.40 : 730,058.40 = 359,812.80 : x
  2. Step 2: Convert to fraction form
    487,166.40/730,058.40 = 359,812.80/x
  3. Step 3: Cross multiply
    487,166.40x = 730,058.40 × 359,812.80
  4. Step 4: Simplify right side
    487,166.40x = 262,684,357,067.52
  5. Step 5: Solve for x
    x = 262,684,357,067.52/487,166.40
  6. Step 6: Final answer
    x = 539,208.69

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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.