Home / 788,220.80-1,086,606.24-561,472.64

Finding the Fourth Proportional to 788,220.80, 1,086,606.24 and 561,472.64

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Solution

The fourth proportional to 788,220.80, 1,086,606.24 and 561,472.64 is: 774,021.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,220.80 : 1,086,606.24 = 561,472.64 : x
  2. Step 2: Convert to fraction form
    788,220.80/1,086,606.24 = 561,472.64/x
  3. Step 3: Cross multiply
    788,220.80x = 1,086,606.24 × 561,472.64
  4. Step 4: Simplify right side
    788,220.80x = 610,099,674,213.27
  5. Step 5: Solve for x
    x = 610,099,674,213.27/788,220.80
  6. Step 6: Final answer
    x = 774,021.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.