Home / 877,481.25-1,316,055.42-427,749.81

Finding the Fourth Proportional to 877,481.25, 1,316,055.42 and 427,749.81

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Solution

The fourth proportional to 877,481.25, 1,316,055.42 and 427,749.81 is: 641,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,481.25 : 1,316,055.42 = 427,749.81 : x
  2. Step 2: Convert to fraction form
    877,481.25/1,316,055.42 = 427,749.81/x
  3. Step 3: Cross multiply
    877,481.25x = 1,316,055.42 × 427,749.81
  4. Step 4: Simplify right side
    877,481.25x = 562,942,455,854.47
  5. Step 5: Solve for x
    x = 562,942,455,854.47/877,481.25
  6. Step 6: Final answer
    x = 641,543.57

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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.