Home / 631,405.93-947,117.10-210,681.80

Finding the Fourth Proportional to 631,405.93, 947,117.10 and 210,681.80

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Solution

The fourth proportional to 631,405.93, 947,117.10 and 210,681.80 is: 316,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,405.93 : 947,117.10 = 210,681.80 : x
  2. Step 2: Convert to fraction form
    631,405.93/947,117.10 = 210,681.80/x
  3. Step 3: Cross multiply
    631,405.93x = 947,117.10 × 210,681.80
  4. Step 4: Simplify right side
    631,405.93x = 199,540,335,438.78
  5. Step 5: Solve for x
    x = 199,540,335,438.78/631,405.93
  6. Step 6: Final answer
    x = 316,025.44

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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.