Home / 501,258.48-691,672.77-286,412.46

Finding the Fourth Proportional to 501,258.48, 691,672.77 and 286,412.46

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Solution

The fourth proportional to 501,258.48, 691,672.77 and 286,412.46 is: 395,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,258.48 : 691,672.77 = 286,412.46 : x
  2. Step 2: Convert to fraction form
    501,258.48/691,672.77 = 286,412.46/x
  3. Step 3: Cross multiply
    501,258.48x = 691,672.77 × 286,412.46
  4. Step 4: Simplify right side
    501,258.48x = 198,103,699,570.71
  5. Step 5: Solve for x
    x = 198,103,699,570.71/501,258.48
  6. Step 6: Final answer
    x = 395,212.66

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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.