Home / 1,163,428.94-1,745,172.56-321,987.98

Finding the Fourth Proportional to 1,163,428.94, 1,745,172.56 and 321,987.98

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Solution

The fourth proportional to 1,163,428.94, 1,745,172.56 and 321,987.98 is: 482,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,428.94 : 1,745,172.56 = 321,987.98 : x
  2. Step 2: Convert to fraction form
    1,163,428.94/1,745,172.56 = 321,987.98/x
  3. Step 3: Cross multiply
    1,163,428.94x = 1,745,172.56 × 321,987.98
  4. Step 4: Simplify right side
    1,163,428.94x = 561,924,587,345.83
  5. Step 5: Solve for x
    x = 561,924,587,345.83/1,163,428.94
  6. Step 6: Final answer
    x = 482,990.04

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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.