Home / 686,753.20-1,030,129.80-450,233.20

Finding the Fourth Proportional to 686,753.20, 1,030,129.80 and 450,233.20

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Solution

The fourth proportional to 686,753.20, 1,030,129.80 and 450,233.20 is: 675,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,753.20 : 1,030,129.80 = 450,233.20 : x
  2. Step 2: Convert to fraction form
    686,753.20/1,030,129.80 = 450,233.20/x
  3. Step 3: Cross multiply
    686,753.20x = 1,030,129.80 × 450,233.20
  4. Step 4: Simplify right side
    686,753.20x = 463,798,636,269.36
  5. Step 5: Solve for x
    x = 463,798,636,269.36/686,753.20
  6. Step 6: Final answer
    x = 675,349.80

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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.