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Finding the Fourth Proportional to 438,599.28, 658,161.36 and 402,907.44

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Solution

The fourth proportional to 438,599.28, 658,161.36 and 402,907.44 is: 604,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,599.28 : 658,161.36 = 402,907.44 : x
  2. Step 2: Convert to fraction form
    438,599.28/658,161.36 = 402,907.44/x
  3. Step 3: Cross multiply
    438,599.28x = 658,161.36 × 402,907.44
  4. Step 4: Simplify right side
    438,599.28x = 265,178,109,848.13
  5. Step 5: Solve for x
    x = 265,178,109,848.13/438,599.28
  6. Step 6: Final answer
    x = 604,602.24

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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.