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Finding the Fourth Proportional to 882,717.90, 1,323,040.05 and 408,401.34

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Solution

The fourth proportional to 882,717.90, 1,323,040.05 and 408,401.34 is: 612,122.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,717.90 : 1,323,040.05 = 408,401.34 : x
  2. Step 2: Convert to fraction form
    882,717.90/1,323,040.05 = 408,401.34/x
  3. Step 3: Cross multiply
    882,717.90x = 1,323,040.05 × 408,401.34
  4. Step 4: Simplify right side
    882,717.90x = 540,331,329,293.67
  5. Step 5: Solve for x
    x = 540,331,329,293.67/882,717.90
  6. Step 6: Final answer
    x = 612,122.32

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1.5x scale

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.