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Finding the Fourth Proportional to 402,592.60, 605,055.30 and 395,594.20

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Solution

The fourth proportional to 402,592.60, 605,055.30 and 395,594.20 is: 594,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,592.60 : 605,055.30 = 395,594.20 : x
  2. Step 2: Convert to fraction form
    402,592.60/605,055.30 = 395,594.20/x
  3. Step 3: Cross multiply
    402,592.60x = 605,055.30 × 395,594.20
  4. Step 4: Simplify right side
    402,592.60x = 239,356,367,359.26
  5. Step 5: Solve for x
    x = 239,356,367,359.26/402,592.60
  6. Step 6: Final answer
    x = 594,537.42

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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.