Home / 813,955.29-1,220,766.67-308,341.95

Finding the Fourth Proportional to 813,955.29, 1,220,766.67 and 308,341.95

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Solution

The fourth proportional to 813,955.29, 1,220,766.67 and 308,341.95 is: 462,449.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,955.29 : 1,220,766.67 = 308,341.95 : x
  2. Step 2: Convert to fraction form
    813,955.29/1,220,766.67 = 308,341.95/x
  3. Step 3: Cross multiply
    813,955.29x = 1,220,766.67 × 308,341.95
  4. Step 4: Simplify right side
    813,955.29x = 376,413,575,522.81
  5. Step 5: Solve for x
    x = 376,413,575,522.81/813,955.29
  6. Step 6: Final answer
    x = 462,449.94

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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.