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Finding the Fourth Proportional to 625,004.77, 862,576.53 and 353,090.15

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Solution

The fourth proportional to 625,004.77, 862,576.53 and 353,090.15 is: 487,303.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,004.77 : 862,576.53 = 353,090.15 : x
  2. Step 2: Convert to fraction form
    625,004.77/862,576.53 = 353,090.15/x
  3. Step 3: Cross multiply
    625,004.77x = 862,576.53 × 353,090.15
  4. Step 4: Simplify right side
    625,004.77x = 304,567,272,051.30
  5. Step 5: Solve for x
    x = 304,567,272,051.30/625,004.77
  6. Step 6: Final answer
    x = 487,303.92

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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.