Home / 858,755.31-1,185,119.35-476,782.13

Finding the Fourth Proportional to 858,755.31, 1,185,119.35 and 476,782.13

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Solution

The fourth proportional to 858,755.31, 1,185,119.35 and 476,782.13 is: 657,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,755.31 : 1,185,119.35 = 476,782.13 : x
  2. Step 2: Convert to fraction form
    858,755.31/1,185,119.35 = 476,782.13/x
  3. Step 3: Cross multiply
    858,755.31x = 1,185,119.35 × 476,782.13
  4. Step 4: Simplify right side
    858,755.31x = 565,043,720,879.66
  5. Step 5: Solve for x
    x = 565,043,720,879.66/858,755.31
  6. Step 6: Final answer
    x = 657,979.89

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Double scale
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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.