Home / 753,342.38-1,039,620.12-409,181.64

Finding the Fourth Proportional to 753,342.38, 1,039,620.12 and 409,181.64

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Solution

The fourth proportional to 753,342.38, 1,039,620.12 and 409,181.64 is: 564,674.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,342.38 : 1,039,620.12 = 409,181.64 : x
  2. Step 2: Convert to fraction form
    753,342.38/1,039,620.12 = 409,181.64/x
  3. Step 3: Cross multiply
    753,342.38x = 1,039,620.12 × 409,181.64
  4. Step 4: Simplify right side
    753,342.38x = 425,393,465,678.60
  5. Step 5: Solve for x
    x = 425,393,465,678.60/753,342.38
  6. Step 6: Final answer
    x = 564,674.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.