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Finding the Fourth Proportional to 606,787.89, 909,891 and 286,673.28

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Solution

The fourth proportional to 606,787.89, 909,891 and 286,673.28 is: 429,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,787.89 : 909,891 = 286,673.28 : x
  2. Step 2: Convert to fraction form
    606,787.89/909,891 = 286,673.28/x
  3. Step 3: Cross multiply
    606,787.89x = 909,891 × 286,673.28
  4. Step 4: Simplify right side
    606,787.89x = 260,841,437,412.48
  5. Step 5: Solve for x
    x = 260,841,437,412.48/606,787.89
  6. Step 6: Final answer
    x = 429,872.52

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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.