Home / 820,043.40-1,230,065.10-726,731.40

Finding the Fourth Proportional to 820,043.40, 1,230,065.10 and 726,731.40

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Solution

The fourth proportional to 820,043.40, 1,230,065.10 and 726,731.40 is: 1,090,097.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,043.40 : 1,230,065.10 = 726,731.40 : x
  2. Step 2: Convert to fraction form
    820,043.40/1,230,065.10 = 726,731.40/x
  3. Step 3: Cross multiply
    820,043.40x = 1,230,065.10 × 726,731.40
  4. Step 4: Simplify right side
    820,043.40x = 893,926,932,214.14
  5. Step 5: Solve for x
    x = 893,926,932,214.14/820,043.40
  6. Step 6: Final answer
    x = 1,090,097.10

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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.