Home / 858,566.28-1,287,848.34-326,086.32

Finding the Fourth Proportional to 858,566.28, 1,287,848.34 and 326,086.32

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Solution

The fourth proportional to 858,566.28, 1,287,848.34 and 326,086.32 is: 489,129.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,566.28 : 1,287,848.34 = 326,086.32 : x
  2. Step 2: Convert to fraction form
    858,566.28/1,287,848.34 = 326,086.32/x
  3. Step 3: Cross multiply
    858,566.28x = 1,287,848.34 × 326,086.32
  4. Step 4: Simplify right side
    858,566.28x = 419,949,725,908.71
  5. Step 5: Solve for x
    x = 419,949,725,908.71/858,566.28
  6. Step 6: Final answer
    x = 489,129.07

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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.