Home / 667,412.15-921,026.55-361,487.76

Finding the Fourth Proportional to 667,412.15, 921,026.55 and 361,487.76

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Solution

The fourth proportional to 667,412.15, 921,026.55 and 361,487.76 is: 498,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,412.15 : 921,026.55 = 361,487.76 : x
  2. Step 2: Convert to fraction form
    667,412.15/921,026.55 = 361,487.76/x
  3. Step 3: Cross multiply
    667,412.15x = 921,026.55 × 361,487.76
  4. Step 4: Simplify right side
    667,412.15x = 332,939,824,460.03
  5. Step 5: Solve for x
    x = 332,939,824,460.03/667,412.15
  6. Step 6: Final answer
    x = 498,851.91

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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.