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Finding the Fourth Proportional to 634,856.76, 876,115.71 and 348,374.34

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Solution

The fourth proportional to 634,856.76, 876,115.71 and 348,374.34 is: 480,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,856.76 : 876,115.71 = 348,374.34 : x
  2. Step 2: Convert to fraction form
    634,856.76/876,115.71 = 348,374.34/x
  3. Step 3: Cross multiply
    634,856.76x = 876,115.71 × 348,374.34
  4. Step 4: Simplify right side
    634,856.76x = 305,216,232,234.88
  5. Step 5: Solve for x
    x = 305,216,232,234.88/634,856.76
  6. Step 6: Final answer
    x = 480,763.93

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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.