Home / 631,656.40-947,975.94-440,877.39

Finding the Fourth Proportional to 631,656.40, 947,975.94 and 440,877.39

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Solution

The fourth proportional to 631,656.40, 947,975.94 and 440,877.39 is: 661,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,656.40 : 947,975.94 = 440,877.39 : x
  2. Step 2: Convert to fraction form
    631,656.40/947,975.94 = 440,877.39/x
  3. Step 3: Cross multiply
    631,656.40x = 947,975.94 × 440,877.39
  4. Step 4: Simplify right side
    631,656.40x = 417,941,154,391.66
  5. Step 5: Solve for x
    x = 417,941,154,391.66/631,656.40
  6. Step 6: Final answer
    x = 661,659.02

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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.