Home / 686,200.60-1,029,300.90-187,564.60

Finding the Fourth Proportional to 686,200.60, 1,029,300.90 and 187,564.60

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Solution

The fourth proportional to 686,200.60, 1,029,300.90 and 187,564.60 is: 281,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,200.60 : 1,029,300.90 = 187,564.60 : x
  2. Step 2: Convert to fraction form
    686,200.60/1,029,300.90 = 187,564.60/x
  3. Step 3: Cross multiply
    686,200.60x = 1,029,300.90 × 187,564.60
  4. Step 4: Simplify right side
    686,200.60x = 193,060,411,588.14
  5. Step 5: Solve for x
    x = 193,060,411,588.14/686,200.60
  6. Step 6: Final answer
    x = 281,346.90

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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.