Home / 1,020,189.75-1,407,872.64-561,310.35

Finding the Fourth Proportional to 1,020,189.75, 1,407,872.64 and 561,310.35

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Solution

The fourth proportional to 1,020,189.75, 1,407,872.64 and 561,310.35 is: 774,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,189.75 : 1,407,872.64 = 561,310.35 : x
  2. Step 2: Convert to fraction form
    1,020,189.75/1,407,872.64 = 561,310.35/x
  3. Step 3: Cross multiply
    1,020,189.75x = 1,407,872.64 × 561,310.35
  4. Step 4: Simplify right side
    1,020,189.75x = 790,253,484,313.82
  5. Step 5: Solve for x
    x = 790,253,484,313.82/1,020,189.75
  6. Step 6: Final answer
    x = 774,614.22

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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.