Home / 634,620.42-875,789.87-348,140.50

Finding the Fourth Proportional to 634,620.42, 875,789.87 and 348,140.50

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Solution

The fourth proportional to 634,620.42, 875,789.87 and 348,140.50 is: 480,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,620.42 : 875,789.87 = 348,140.50 : x
  2. Step 2: Convert to fraction form
    634,620.42/875,789.87 = 348,140.50/x
  3. Step 3: Cross multiply
    634,620.42x = 875,789.87 × 348,140.50
  4. Step 4: Simplify right side
    634,620.42x = 304,897,919,306.56
  5. Step 5: Solve for x
    x = 304,897,919,306.56/634,620.42
  6. Step 6: Final answer
    x = 480,441.39

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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.