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Finding the Fourth Proportional to 570,419.46, 787,222.58 and 325,409.61

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Solution

The fourth proportional to 570,419.46, 787,222.58 and 325,409.61 is: 449,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,419.46 : 787,222.58 = 325,409.61 : x
  2. Step 2: Convert to fraction form
    570,419.46/787,222.58 = 325,409.61/x
  3. Step 3: Cross multiply
    570,419.46x = 787,222.58 × 325,409.61
  4. Step 4: Simplify right side
    570,419.46x = 256,169,791,113.95
  5. Step 5: Solve for x
    x = 256,169,791,113.95/570,419.46
  6. Step 6: Final answer
    x = 449,090.20

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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.