Home / 678,861.51-1,018,292.25-173,423.61

Finding the Fourth Proportional to 678,861.51, 1,018,292.25 and 173,423.61

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Solution

The fourth proportional to 678,861.51, 1,018,292.25 and 173,423.61 is: 260,135.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,861.51 : 1,018,292.25 = 173,423.61 : x
  2. Step 2: Convert to fraction form
    678,861.51/1,018,292.25 = 173,423.61/x
  3. Step 3: Cross multiply
    678,861.51x = 1,018,292.25 × 173,423.61
  4. Step 4: Simplify right side
    678,861.51x = 176,595,918,030.02
  5. Step 5: Solve for x
    x = 176,595,918,030.02/678,861.51
  6. Step 6: Final answer
    x = 260,135.41

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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.