Home / 858,556.28-1,287,833.34-326,076.32

Finding the Fourth Proportional to 858,556.28, 1,287,833.34 and 326,076.32

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Solution

The fourth proportional to 858,556.28, 1,287,833.34 and 326,076.32 is: 489,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,556.28 : 1,287,833.34 = 326,076.32 : x
  2. Step 2: Convert to fraction form
    858,556.28/1,287,833.34 = 326,076.32/x
  3. Step 3: Cross multiply
    858,556.28x = 1,287,833.34 × 326,076.32
  4. Step 4: Simplify right side
    858,556.28x = 419,931,956,280.51
  5. Step 5: Solve for x
    x = 419,931,956,280.51/858,556.28
  6. Step 6: Final answer
    x = 489,114.07

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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.