Home / 2,187,717.54-3,018,689.16-1,220,845.50

Finding the Fourth Proportional to 2,187,717.54, 3,018,689.16 and 1,220,845.50

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Solution

The fourth proportional to 2,187,717.54, 3,018,689.16 and 1,220,845.50 is: 1,684,565.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,717.54 : 3,018,689.16 = 1,220,845.50 : x
  2. Step 2: Convert to fraction form
    2,187,717.54/3,018,689.16 = 1,220,845.50/x
  3. Step 3: Cross multiply
    2,187,717.54x = 3,018,689.16 × 1,220,845.50
  4. Step 4: Simplify right side
    2,187,717.54x = 3,685,353,076,884.78
  5. Step 5: Solve for x
    x = 3,685,353,076,884.78/2,187,717.54
  6. Step 6: Final answer
    x = 1,684,565.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.