Home / 713,789.37-985,030.77-391,502.13

Finding the Fourth Proportional to 713,789.37, 985,030.77 and 391,502.13

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Solution

The fourth proportional to 713,789.37, 985,030.77 and 391,502.13 is: 540,273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,789.37 : 985,030.77 = 391,502.13 : x
  2. Step 2: Convert to fraction form
    713,789.37/985,030.77 = 391,502.13/x
  3. Step 3: Cross multiply
    713,789.37x = 985,030.77 × 391,502.13
  4. Step 4: Simplify right side
    713,789.37x = 385,641,644,570.54
  5. Step 5: Solve for x
    x = 385,641,644,570.54/713,789.37
  6. Step 6: Final answer
    x = 540,273.73

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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.