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Finding the Fourth Proportional to 628,987.87, 942,608.92 and 286,594.53

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Solution

The fourth proportional to 628,987.87, 942,608.92 and 286,594.53 is: 429,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,987.87 : 942,608.92 = 286,594.53 : x
  2. Step 2: Convert to fraction form
    628,987.87/942,608.92 = 286,594.53/x
  3. Step 3: Cross multiply
    628,987.87x = 942,608.92 × 286,594.53
  4. Step 4: Simplify right side
    628,987.87x = 270,146,562,757.73
  5. Step 5: Solve for x
    x = 270,146,562,757.73/628,987.87
  6. Step 6: Final answer
    x = 429,494.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.