Home / 1,020,197.16-1,407,882.87-561,317.78

Finding the Fourth Proportional to 1,020,197.16, 1,407,882.87 and 561,317.78

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Solution

The fourth proportional to 1,020,197.16, 1,407,882.87 and 561,317.78 is: 774,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,197.16 : 1,407,882.87 = 561,317.78 : x
  2. Step 2: Convert to fraction form
    1,020,197.16/1,407,882.87 = 561,317.78/x
  3. Step 3: Cross multiply
    1,020,197.16x = 1,407,882.87 × 561,317.78
  4. Step 4: Simplify right side
    1,020,197.16x = 790,269,690,608.14
  5. Step 5: Solve for x
    x = 790,269,690,608.14/1,020,197.16
  6. Step 6: Final answer
    x = 774,624.48

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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.