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Finding the Fourth Proportional to 605,765.64, 907,644.06 and 368,390.28

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Solution

The fourth proportional to 605,765.64, 907,644.06 and 368,390.28 is: 551,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,765.64 : 907,644.06 = 368,390.28 : x
  2. Step 2: Convert to fraction form
    605,765.64/907,644.06 = 368,390.28/x
  3. Step 3: Cross multiply
    605,765.64x = 907,644.06 × 368,390.28
  4. Step 4: Simplify right side
    605,765.64x = 334,367,249,403.74
  5. Step 5: Solve for x
    x = 334,367,249,403.74/605,765.64
  6. Step 6: Final answer
    x = 551,974.60

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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.