Home / 679,731.49-1,019,531.01-206,420.95

Finding the Fourth Proportional to 679,731.49, 1,019,531.01 and 206,420.95

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Solution

The fourth proportional to 679,731.49, 1,019,531.01 and 206,420.95 is: 309,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,731.49 : 1,019,531.01 = 206,420.95 : x
  2. Step 2: Convert to fraction form
    679,731.49/1,019,531.01 = 206,420.95/x
  3. Step 3: Cross multiply
    679,731.49x = 1,019,531.01 × 206,420.95
  4. Step 4: Simplify right side
    679,731.49x = 210,452,554,541.00
  5. Step 5: Solve for x
    x = 210,452,554,541.00/679,731.49
  6. Step 6: Final answer
    x = 309,611.31

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1.5x scale

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.