Home / 645,966.64-969,306.72-266,799.16

Finding the Fourth Proportional to 645,966.64, 969,306.72 and 266,799.16

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Solution

The fourth proportional to 645,966.64, 969,306.72 and 266,799.16 is: 400,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,966.64 : 969,306.72 = 266,799.16 : x
  2. Step 2: Convert to fraction form
    645,966.64/969,306.72 = 266,799.16/x
  3. Step 3: Cross multiply
    645,966.64x = 969,306.72 × 266,799.16
  4. Step 4: Simplify right side
    645,966.64x = 258,610,218,678.36
  5. Step 5: Solve for x
    x = 258,610,218,678.36/645,966.64
  6. Step 6: Final answer
    x = 400,346.09

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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.