Home / 684,072.72-1,026,111.51-210,755.70

Finding the Fourth Proportional to 684,072.72, 1,026,111.51 and 210,755.70

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Solution

The fourth proportional to 684,072.72, 1,026,111.51 and 210,755.70 is: 316,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,072.72 : 1,026,111.51 = 210,755.70 : x
  2. Step 2: Convert to fraction form
    684,072.72/1,026,111.51 = 210,755.70/x
  3. Step 3: Cross multiply
    684,072.72x = 1,026,111.51 × 210,755.70
  4. Step 4: Simplify right side
    684,072.72x = 216,258,849,568.11
  5. Step 5: Solve for x
    x = 216,258,849,568.11/684,072.72
  6. Step 6: Final answer
    x = 316,134.30

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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.