Home / 909,802.32-1,365,625.80-820,447.44

Finding the Fourth Proportional to 909,802.32, 1,365,625.80 and 820,447.44

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Solution

The fourth proportional to 909,802.32, 1,365,625.80 and 820,447.44 is: 1,231,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,802.32 : 1,365,625.80 = 820,447.44 : x
  2. Step 2: Convert to fraction form
    909,802.32/1,365,625.80 = 820,447.44/x
  3. Step 3: Cross multiply
    909,802.32x = 1,365,625.80 × 820,447.44
  4. Step 4: Simplify right side
    909,802.32x = 1,120,424,191,607.95
  5. Step 5: Solve for x
    x = 1,120,424,191,607.95/909,802.32
  6. Step 6: Final answer
    x = 1,231,502.90

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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.