Home / 686,029.40-1,029,627.30-307,532.60

Finding the Fourth Proportional to 686,029.40, 1,029,627.30 and 307,532.60

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Solution

The fourth proportional to 686,029.40, 1,029,627.30 and 307,532.60 is: 461,560.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,029.40 : 1,029,627.30 = 307,532.60 : x
  2. Step 2: Convert to fraction form
    686,029.40/1,029,627.30 = 307,532.60/x
  3. Step 3: Cross multiply
    686,029.40x = 1,029,627.30 × 307,532.60
  4. Step 4: Simplify right side
    686,029.40x = 316,643,960,599.98
  5. Step 5: Solve for x
    x = 316,643,960,599.98/686,029.40
  6. Step 6: Final answer
    x = 461,560.34

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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.