Home / 864,021.60-1,296,316.71-408,808.49

Finding the Fourth Proportional to 864,021.60, 1,296,316.71 and 408,808.49

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Solution

The fourth proportional to 864,021.60, 1,296,316.71 and 408,808.49 is: 613,347.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,021.60 : 1,296,316.71 = 408,808.49 : x
  2. Step 2: Convert to fraction form
    864,021.60/1,296,316.71 = 408,808.49/x
  3. Step 3: Cross multiply
    864,021.60x = 1,296,316.71 × 408,808.49
  4. Step 4: Simplify right side
    864,021.60x = 529,945,270,295.28
  5. Step 5: Solve for x
    x = 529,945,270,295.28/864,021.60
  6. Step 6: Final answer
    x = 613,347.25

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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.