Home / 920,267.28-1,380,802.74-321,657.98

Finding the Fourth Proportional to 920,267.28, 1,380,802.74 and 321,657.98

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Solution

The fourth proportional to 920,267.28, 1,380,802.74 and 321,657.98 is: 482,627.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,267.28 : 1,380,802.74 = 321,657.98 : x
  2. Step 2: Convert to fraction form
    920,267.28/1,380,802.74 = 321,657.98/x
  3. Step 3: Cross multiply
    920,267.28x = 1,380,802.74 × 321,657.98
  4. Step 4: Simplify right side
    920,267.28x = 444,146,220,126.87
  5. Step 5: Solve for x
    x = 444,146,220,126.87/920,267.28
  6. Step 6: Final answer
    x = 482,627.42

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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.