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Finding the Fourth Proportional to 634,873.53, 876,150.74 and 348,403.87

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Solution

The fourth proportional to 634,873.53, 876,150.74 and 348,403.87 is: 480,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,873.53 : 876,150.74 = 348,403.87 : x
  2. Step 2: Convert to fraction form
    634,873.53/876,150.74 = 348,403.87/x
  3. Step 3: Cross multiply
    634,873.53x = 876,150.74 × 348,403.87
  4. Step 4: Simplify right side
    634,873.53x = 305,254,304,586.97
  5. Step 5: Solve for x
    x = 305,254,304,586.97/634,873.53
  6. Step 6: Final answer
    x = 480,811.20

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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.