Home / 1,020,200.74-1,407,887.82-561,321.34

Finding the Fourth Proportional to 1,020,200.74, 1,407,887.82 and 561,321.34

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Solution

The fourth proportional to 1,020,200.74, 1,407,887.82 and 561,321.34 is: 774,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,200.74 : 1,407,887.82 = 561,321.34 : x
  2. Step 2: Convert to fraction form
    1,020,200.74/1,407,887.82 = 561,321.34/x
  3. Step 3: Cross multiply
    1,020,200.74x = 1,407,887.82 × 561,321.34
  4. Step 4: Simplify right side
    1,020,200.74x = 790,277,477,692.08
  5. Step 5: Solve for x
    x = 790,277,477,692.08/1,020,200.74
  6. Step 6: Final answer
    x = 774,629.39

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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.