Home / 1,008,490.33-1,391,716.65-555,781.33

Finding the Fourth Proportional to 1,008,490.33, 1,391,716.65 and 555,781.33

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Solution

The fourth proportional to 1,008,490.33, 1,391,716.65 and 555,781.33 is: 766,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,490.33 : 1,391,716.65 = 555,781.33 : x
  2. Step 2: Convert to fraction form
    1,008,490.33/1,391,716.65 = 555,781.33/x
  3. Step 3: Cross multiply
    1,008,490.33x = 1,391,716.65 × 555,781.33
  4. Step 4: Simplify right side
    1,008,490.33x = 773,490,130,720.14
  5. Step 5: Solve for x
    x = 773,490,130,720.14/1,008,490.33
  6. Step 6: Final answer
    x = 766,978.23

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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.