Home / 663,637.86-994,826.08-423,076.63

Finding the Fourth Proportional to 663,637.86, 994,826.08 and 423,076.63

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Solution

The fourth proportional to 663,637.86, 994,826.08 and 423,076.63 is: 634,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,637.86 : 994,826.08 = 423,076.63 : x
  2. Step 2: Convert to fraction form
    663,637.86/994,826.08 = 423,076.63/x
  3. Step 3: Cross multiply
    663,637.86x = 994,826.08 × 423,076.63
  4. Step 4: Simplify right side
    663,637.86x = 420,887,665,362.51
  5. Step 5: Solve for x
    x = 420,887,665,362.51/663,637.86
  6. Step 6: Final answer
    x = 634,212.86

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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.