Home / 678,345.60-1,017,540.06-341,202.12

Finding the Fourth Proportional to 678,345.60, 1,017,540.06 and 341,202.12

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Solution

The fourth proportional to 678,345.60, 1,017,540.06 and 341,202.12 is: 511,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,345.60 : 1,017,540.06 = 341,202.12 : x
  2. Step 2: Convert to fraction form
    678,345.60/1,017,540.06 = 341,202.12/x
  3. Step 3: Cross multiply
    678,345.60x = 1,017,540.06 × 341,202.12
  4. Step 4: Simplify right side
    678,345.60x = 347,186,825,656.93
  5. Step 5: Solve for x
    x = 347,186,825,656.93/678,345.60
  6. Step 6: Final answer
    x = 511,814.07

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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.