Home / 907,380.45-1,361,508.08-640,566.45

Finding the Fourth Proportional to 907,380.45, 1,361,508.08 and 640,566.45

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Solution

The fourth proportional to 907,380.45, 1,361,508.08 and 640,566.45 is: 961,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,380.45 : 1,361,508.08 = 640,566.45 : x
  2. Step 2: Convert to fraction form
    907,380.45/1,361,508.08 = 640,566.45/x
  3. Step 3: Cross multiply
    907,380.45x = 1,361,508.08 × 640,566.45
  4. Step 4: Simplify right side
    907,380.45x = 872,136,394,249.08
  5. Step 5: Solve for x
    x = 872,136,394,249.08/907,380.45
  6. Step 6: Final answer
    x = 961,158.46

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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.