Home / 438,582.20-658,135.73-402,890.36

Finding the Fourth Proportional to 438,582.20, 658,135.73 and 402,890.36

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Solution

The fourth proportional to 438,582.20, 658,135.73 and 402,890.36 is: 604,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,582.20 : 658,135.73 = 402,890.36 : x
  2. Step 2: Convert to fraction form
    438,582.20/658,135.73 = 402,890.36/x
  3. Step 3: Cross multiply
    438,582.20x = 658,135.73 × 402,890.36
  4. Step 4: Simplify right side
    438,582.20x = 265,156,538,905.11
  5. Step 5: Solve for x
    x = 265,156,538,905.11/438,582.20
  6. Step 6: Final answer
    x = 604,576.62

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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.