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Finding the Fourth Proportional to 634,765.53, 875,992.55 and 348,285.54

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Solution

The fourth proportional to 634,765.53, 875,992.55 and 348,285.54 is: 480,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,765.53 : 875,992.55 = 348,285.54 : x
  2. Step 2: Convert to fraction form
    634,765.53/875,992.55 = 348,285.54/x
  3. Step 3: Cross multiply
    634,765.53x = 875,992.55 × 348,285.54
  4. Step 4: Simplify right side
    634,765.53x = 305,095,538,312.73
  5. Step 5: Solve for x
    x = 305,095,538,312.73/634,765.53
  6. Step 6: Final answer
    x = 480,642.89

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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.