Home / 678,371.95-1,017,262.68-341,202.16

Finding the Fourth Proportional to 678,371.95, 1,017,262.68 and 341,202.16

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Solution

The fourth proportional to 678,371.95, 1,017,262.68 and 341,202.16 is: 511,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,371.95 : 1,017,262.68 = 341,202.16 : x
  2. Step 2: Convert to fraction form
    678,371.95/1,017,262.68 = 341,202.16/x
  3. Step 3: Cross multiply
    678,371.95x = 1,017,262.68 × 341,202.16
  4. Step 4: Simplify right side
    678,371.95x = 347,092,223,703.39
  5. Step 5: Solve for x
    x = 347,092,223,703.39/678,371.95
  6. Step 6: Final answer
    x = 511,654.74

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Double scale
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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.