Home / 686,952.60-1,030,505.70-213,634.20

Finding the Fourth Proportional to 686,952.60, 1,030,505.70 and 213,634.20

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Solution

The fourth proportional to 686,952.60, 1,030,505.70 and 213,634.20 is: 320,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,952.60 : 1,030,505.70 = 213,634.20 : x
  2. Step 2: Convert to fraction form
    686,952.60/1,030,505.70 = 213,634.20/x
  3. Step 3: Cross multiply
    686,952.60x = 1,030,505.70 × 213,634.20
  4. Step 4: Simplify right side
    686,952.60x = 220,151,260,814.94
  5. Step 5: Solve for x
    x = 220,151,260,814.94/686,952.60
  6. Step 6: Final answer
    x = 320,475.18

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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.