Home / 816,886.38-1,225,388.16-217,844.40

Finding the Fourth Proportional to 816,886.38, 1,225,388.16 and 217,844.40

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Solution

The fourth proportional to 816,886.38, 1,225,388.16 and 217,844.40 is: 326,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,886.38 : 1,225,388.16 = 217,844.40 : x
  2. Step 2: Convert to fraction form
    816,886.38/1,225,388.16 = 217,844.40/x
  3. Step 3: Cross multiply
    816,886.38x = 1,225,388.16 × 217,844.40
  4. Step 4: Simplify right side
    816,886.38x = 266,943,948,482.30
  5. Step 5: Solve for x
    x = 266,943,948,482.30/816,886.38
  6. Step 6: Final answer
    x = 326,782.22

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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.