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Finding the Fourth Proportional to 634,879.53, 876,159.03 and 348,409.87

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Solution

The fourth proportional to 634,879.53, 876,159.03 and 348,409.87 is: 480,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,879.53 : 876,159.03 = 348,409.87 : x
  2. Step 2: Convert to fraction form
    634,879.53/876,159.03 = 348,409.87/x
  3. Step 3: Cross multiply
    634,879.53x = 876,159.03 × 348,409.87
  4. Step 4: Simplify right side
    634,879.53x = 305,262,453,741.63
  5. Step 5: Solve for x
    x = 305,262,453,741.63/634,879.53
  6. Step 6: Final answer
    x = 480,819.49

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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.