Home / 501,346.07-691,858.71-286,485.62

Finding the Fourth Proportional to 501,346.07, 691,858.71 and 286,485.62

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Solution

The fourth proportional to 501,346.07, 691,858.71 and 286,485.62 is: 395,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,346.07 : 691,858.71 = 286,485.62 : x
  2. Step 2: Convert to fraction form
    501,346.07/691,858.71 = 286,485.62/x
  3. Step 3: Cross multiply
    501,346.07x = 691,858.71 × 286,485.62
  4. Step 4: Simplify right side
    501,346.07x = 198,207,568,027.46
  5. Step 5: Solve for x
    x = 198,207,568,027.46/501,346.07
  6. Step 6: Final answer
    x = 395,350.80

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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.