Home / 686,937.30-1,030,503.15-213,573.30

Finding the Fourth Proportional to 686,937.30, 1,030,503.15 and 213,573.30

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Solution

The fourth proportional to 686,937.30, 1,030,503.15 and 213,573.30 is: 320,390.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,937.30 : 1,030,503.15 = 213,573.30 : x
  2. Step 2: Convert to fraction form
    686,937.30/1,030,503.15 = 213,573.30/x
  3. Step 3: Cross multiply
    686,937.30x = 1,030,503.15 × 213,573.30
  4. Step 4: Simplify right side
    686,937.30x = 220,087,958,405.90
  5. Step 5: Solve for x
    x = 220,087,958,405.90/686,937.30
  6. Step 6: Final answer
    x = 320,390.17

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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.