Home / 1,638,490.50-2,458,150.47-456,538.50

Finding the Fourth Proportional to 1,638,490.50, 2,458,150.47 and 456,538.50

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Solution

The fourth proportional to 1,638,490.50, 2,458,150.47 and 456,538.50 is: 684,923.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,490.50 : 2,458,150.47 = 456,538.50 : x
  2. Step 2: Convert to fraction form
    1,638,490.50/2,458,150.47 = 456,538.50/x
  3. Step 3: Cross multiply
    1,638,490.50x = 2,458,150.47 × 456,538.50
  4. Step 4: Simplify right side
    1,638,490.50x = 1,122,240,328,348.10
  5. Step 5: Solve for x
    x = 1,122,240,328,348.10/1,638,490.50
  6. Step 6: Final answer
    x = 684,923.30

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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.