Home / 678,298.74-1,017,469.83-341,155.38

Finding the Fourth Proportional to 678,298.74, 1,017,469.83 and 341,155.38

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Solution

The fourth proportional to 678,298.74, 1,017,469.83 and 341,155.38 is: 511,743.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,298.74 : 1,017,469.83 = 341,155.38 : x
  2. Step 2: Convert to fraction form
    678,298.74/1,017,469.83 = 341,155.38/x
  3. Step 3: Cross multiply
    678,298.74x = 1,017,469.83 × 341,155.38
  4. Step 4: Simplify right side
    678,298.74x = 347,115,306,492.19
  5. Step 5: Solve for x
    x = 347,115,306,492.19/678,298.74
  6. Step 6: Final answer
    x = 511,743.99

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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.