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Finding the Fourth Proportional to 890,998.30, 1,336,497.45 and 881,667.10

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Solution

The fourth proportional to 890,998.30, 1,336,497.45 and 881,667.10 is: 1,322,500.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,998.30 : 1,336,497.45 = 881,667.10 : x
  2. Step 2: Convert to fraction form
    890,998.30/1,336,497.45 = 881,667.10/x
  3. Step 3: Cross multiply
    890,998.30x = 1,336,497.45 × 881,667.10
  4. Step 4: Simplify right side
    890,998.30x = 1,178,345,830,898.90
  5. Step 5: Solve for x
    x = 1,178,345,830,898.90/890,998.30
  6. Step 6: Final answer
    x = 1,322,500.65

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Similar ratio
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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.