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Finding the Fourth Proportional to 909,433.53, 1,363,774.98 and 310,443

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Solution

The fourth proportional to 909,433.53, 1,363,774.98 and 310,443 is: 465,536.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,433.53 : 1,363,774.98 = 310,443 : x
  2. Step 2: Convert to fraction form
    909,433.53/1,363,774.98 = 310,443/x
  3. Step 3: Cross multiply
    909,433.53x = 1,363,774.98 × 310,443
  4. Step 4: Simplify right side
    909,433.53x = 423,374,396,116.14
  5. Step 5: Solve for x
    x = 423,374,396,116.14/909,433.53
  6. Step 6: Final answer
    x = 465,536.38

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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.