Home / 680,418.66-1,019,461.59-480,381.06

Finding the Fourth Proportional to 680,418.66, 1,019,461.59 and 480,381.06

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Solution

The fourth proportional to 680,418.66, 1,019,461.59 and 480,381.06 is: 719,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,418.66 : 1,019,461.59 = 480,381.06 : x
  2. Step 2: Convert to fraction form
    680,418.66/1,019,461.59 = 480,381.06/x
  3. Step 3: Cross multiply
    680,418.66x = 1,019,461.59 × 480,381.06
  4. Step 4: Simplify right side
    680,418.66x = 489,730,039,233.49
  5. Step 5: Solve for x
    x = 489,730,039,233.49/680,418.66
  6. Step 6: Final answer
    x = 719,748.10

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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.