Home / 678,916.45-1,018,374.51-173,478.37

Finding the Fourth Proportional to 678,916.45, 1,018,374.51 and 173,478.37

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Solution

The fourth proportional to 678,916.45, 1,018,374.51 and 173,478.37 is: 260,217.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,916.45 : 1,018,374.51 = 173,478.37 : x
  2. Step 2: Convert to fraction form
    678,916.45/1,018,374.51 = 173,478.37/x
  3. Step 3: Cross multiply
    678,916.45x = 1,018,374.51 × 173,478.37
  4. Step 4: Simplify right side
    678,916.45x = 176,665,950,044.35
  5. Step 5: Solve for x
    x = 176,665,950,044.35/678,916.45
  6. Step 6: Final answer
    x = 260,217.51

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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.