Home / 1,089,780.53-1,634,732.28-331,646.72

Finding the Fourth Proportional to 1,089,780.53, 1,634,732.28 and 331,646.72

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Solution

The fourth proportional to 1,089,780.53, 1,634,732.28 and 331,646.72 is: 497,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,780.53 : 1,634,732.28 = 331,646.72 : x
  2. Step 2: Convert to fraction form
    1,089,780.53/1,634,732.28 = 331,646.72/x
  3. Step 3: Cross multiply
    1,089,780.53x = 1,634,732.28 × 331,646.72
  4. Step 4: Simplify right side
    1,089,780.53x = 542,153,590,566.46
  5. Step 5: Solve for x
    x = 542,153,590,566.46/1,089,780.53
  6. Step 6: Final answer
    x = 497,488.79

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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.