Home / 631,406.64-947,118.16-210,682.52

Finding the Fourth Proportional to 631,406.64, 947,118.16 and 210,682.52

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Solution

The fourth proportional to 631,406.64, 947,118.16 and 210,682.52 is: 316,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,406.64 : 947,118.16 = 210,682.52 : x
  2. Step 2: Convert to fraction form
    631,406.64/947,118.16 = 210,682.52/x
  3. Step 3: Cross multiply
    631,406.64x = 947,118.16 × 210,682.52
  4. Step 4: Simplify right side
    631,406.64x = 199,541,240,686.56
  5. Step 5: Solve for x
    x = 199,541,240,686.56/631,406.64
  6. Step 6: Final answer
    x = 316,026.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.