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Finding the Fourth Proportional to 806,891.40, 1,210,337.10 and 364,523.40

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Solution

The fourth proportional to 806,891.40, 1,210,337.10 and 364,523.40 is: 546,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,891.40 : 1,210,337.10 = 364,523.40 : x
  2. Step 2: Convert to fraction form
    806,891.40/1,210,337.10 = 364,523.40/x
  3. Step 3: Cross multiply
    806,891.40x = 1,210,337.10 × 364,523.40
  4. Step 4: Simplify right side
    806,891.40x = 441,196,194,838.14
  5. Step 5: Solve for x
    x = 441,196,194,838.14/806,891.40
  6. Step 6: Final answer
    x = 546,785.10

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Double scale
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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.