Home / 706,683.20-1,057,605.60-426,401.60

Finding the Fourth Proportional to 706,683.20, 1,057,605.60 and 426,401.60

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Solution

The fourth proportional to 706,683.20, 1,057,605.60 and 426,401.60 is: 638,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,683.20 : 1,057,605.60 = 426,401.60 : x
  2. Step 2: Convert to fraction form
    706,683.20/1,057,605.60 = 426,401.60/x
  3. Step 3: Cross multiply
    706,683.20x = 1,057,605.60 × 426,401.60
  4. Step 4: Simplify right side
    706,683.20x = 450,964,720,008.96
  5. Step 5: Solve for x
    x = 450,964,720,008.96/706,683.20
  6. Step 6: Final answer
    x = 638,142.69

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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.