Home / 1,038,664.90-1,558,872.15-408,031.30

Finding the Fourth Proportional to 1,038,664.90, 1,558,872.15 and 408,031.30

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Solution

The fourth proportional to 1,038,664.90, 1,558,872.15 and 408,031.30 is: 612,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,664.90 : 1,558,872.15 = 408,031.30 : x
  2. Step 2: Convert to fraction form
    1,038,664.90/1,558,872.15 = 408,031.30/x
  3. Step 3: Cross multiply
    1,038,664.90x = 1,558,872.15 × 408,031.30
  4. Step 4: Simplify right side
    1,038,664.90x = 636,068,629,898.30
  5. Step 5: Solve for x
    x = 636,068,629,898.30/1,038,664.90
  6. Step 6: Final answer
    x = 612,390.61

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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.