Home / 906,644.80-1,359,967.20-640,924.30

Finding the Fourth Proportional to 906,644.80, 1,359,967.20 and 640,924.30

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Solution

The fourth proportional to 906,644.80, 1,359,967.20 and 640,924.30 is: 961,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,644.80 : 1,359,967.20 = 640,924.30 : x
  2. Step 2: Convert to fraction form
    906,644.80/1,359,967.20 = 640,924.30/x
  3. Step 3: Cross multiply
    906,644.80x = 1,359,967.20 × 640,924.30
  4. Step 4: Simplify right side
    906,644.80x = 871,636,025,682.96
  5. Step 5: Solve for x
    x = 871,636,025,682.96/906,644.80
  6. Step 6: Final answer
    x = 961,386.45

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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.