Home / 890,678.16-1,336,005.86-216,760.62

Finding the Fourth Proportional to 890,678.16, 1,336,005.86 and 216,760.62

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Solution

The fourth proportional to 890,678.16, 1,336,005.86 and 216,760.62 is: 325,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,678.16 : 1,336,005.86 = 216,760.62 : x
  2. Step 2: Convert to fraction form
    890,678.16/1,336,005.86 = 216,760.62/x
  3. Step 3: Cross multiply
    890,678.16x = 1,336,005.86 × 216,760.62
  4. Step 4: Simplify right side
    890,678.16x = 289,593,458,537.23
  5. Step 5: Solve for x
    x = 289,593,458,537.23/890,678.16
  6. Step 6: Final answer
    x = 325,138.16

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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.