Home / 686,980.95-1,030,194.55-207,060.21

Finding the Fourth Proportional to 686,980.95, 1,030,194.55 and 207,060.21

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Solution

The fourth proportional to 686,980.95, 1,030,194.55 and 207,060.21 is: 310,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,980.95 : 1,030,194.55 = 207,060.21 : x
  2. Step 2: Convert to fraction form
    686,980.95/1,030,194.55 = 207,060.21/x
  3. Step 3: Cross multiply
    686,980.95x = 1,030,194.55 × 207,060.21
  4. Step 4: Simplify right side
    686,980.95x = 213,312,295,052.19
  5. Step 5: Solve for x
    x = 213,312,295,052.19/686,980.95
  6. Step 6: Final answer
    x = 310,506.86

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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.