Home / 748,924.80-1,122,220.80-648,614.40

Finding the Fourth Proportional to 748,924.80, 1,122,220.80 and 648,614.40

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Solution

The fourth proportional to 748,924.80, 1,122,220.80 and 648,614.40 is: 971,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,924.80 : 1,122,220.80 = 648,614.40 : x
  2. Step 2: Convert to fraction form
    748,924.80/1,122,220.80 = 648,614.40/x
  3. Step 3: Cross multiply
    748,924.80x = 1,122,220.80 × 648,614.40
  4. Step 4: Simplify right side
    748,924.80x = 727,888,570,859.52
  5. Step 5: Solve for x
    x = 727,888,570,859.52/748,924.80
  6. Step 6: Final answer
    x = 971,911.43

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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.