Home / 684,078.72-1,026,828.07-396,452.32

Finding the Fourth Proportional to 684,078.72, 1,026,828.07 and 396,452.32

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Solution

The fourth proportional to 684,078.72, 1,026,828.07 and 396,452.32 is: 595,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,078.72 : 1,026,828.07 = 396,452.32 : x
  2. Step 2: Convert to fraction form
    684,078.72/1,026,828.07 = 396,452.32/x
  3. Step 3: Cross multiply
    684,078.72x = 1,026,828.07 × 396,452.32
  4. Step 4: Simplify right side
    684,078.72x = 407,088,370,592.62
  5. Step 5: Solve for x
    x = 407,088,370,592.62/684,078.72
  6. Step 6: Final answer
    x = 595,089.95

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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.