Home / 678,580.47-1,017,905.74-173,145.87

Finding the Fourth Proportional to 678,580.47, 1,017,905.74 and 173,145.87

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Solution

The fourth proportional to 678,580.47, 1,017,905.74 and 173,145.87 is: 259,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,580.47 : 1,017,905.74 = 173,145.87 : x
  2. Step 2: Convert to fraction form
    678,580.47/1,017,905.74 = 173,145.87/x
  3. Step 3: Cross multiply
    678,580.47x = 1,017,905.74 × 173,145.87
  4. Step 4: Simplify right side
    678,580.47x = 176,246,174,497.43
  5. Step 5: Solve for x
    x = 176,246,174,497.43/678,580.47
  6. Step 6: Final answer
    x = 259,727.74

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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.