Home / 712,611.10-1,069,020.99-207,106.40

Finding the Fourth Proportional to 712,611.10, 1,069,020.99 and 207,106.40

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Solution

The fourth proportional to 712,611.10, 1,069,020.99 and 207,106.40 is: 310,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,611.10 : 1,069,020.99 = 207,106.40 : x
  2. Step 2: Convert to fraction form
    712,611.10/1,069,020.99 = 207,106.40/x
  3. Step 3: Cross multiply
    712,611.10x = 1,069,020.99 × 207,106.40
  4. Step 4: Simplify right side
    712,611.10x = 221,401,091,435.89
  5. Step 5: Solve for x
    x = 221,401,091,435.89/712,611.10
  6. Step 6: Final answer
    x = 310,689.93

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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.