Home / 678,299.52-1,017,470.94-341,156.16

Finding the Fourth Proportional to 678,299.52, 1,017,470.94 and 341,156.16

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Solution

The fourth proportional to 678,299.52, 1,017,470.94 and 341,156.16 is: 511,745.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,299.52 : 1,017,470.94 = 341,156.16 : x
  2. Step 2: Convert to fraction form
    678,299.52/1,017,470.94 = 341,156.16/x
  3. Step 3: Cross multiply
    678,299.52x = 1,017,470.94 × 341,156.16
  4. Step 4: Simplify right side
    678,299.52x = 347,116,478,801.99
  5. Step 5: Solve for x
    x = 347,116,478,801.99/678,299.52
  6. Step 6: Final answer
    x = 511,745.13

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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.