Home / 679,316.29-1,019,251.22-342,454.03

Finding the Fourth Proportional to 679,316.29, 1,019,251.22 and 342,454.03

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Solution

The fourth proportional to 679,316.29, 1,019,251.22 and 342,454.03 is: 513,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,316.29 : 1,019,251.22 = 342,454.03 : x
  2. Step 2: Convert to fraction form
    679,316.29/1,019,251.22 = 342,454.03/x
  3. Step 3: Cross multiply
    679,316.29x = 1,019,251.22 × 342,454.03
  4. Step 4: Simplify right side
    679,316.29x = 349,046,683,611.02
  5. Step 5: Solve for x
    x = 349,046,683,611.02/679,316.29
  6. Step 6: Final answer
    x = 513,820.57

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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.