Home / 810,080.52-1,117,945.08-465,916.54

Finding the Fourth Proportional to 810,080.52, 1,117,945.08 and 465,916.54

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Solution

The fourth proportional to 810,080.52, 1,117,945.08 and 465,916.54 is: 642,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,080.52 : 1,117,945.08 = 465,916.54 : x
  2. Step 2: Convert to fraction form
    810,080.52/1,117,945.08 = 465,916.54/x
  3. Step 3: Cross multiply
    810,080.52x = 1,117,945.08 × 465,916.54
  4. Step 4: Simplify right side
    810,080.52x = 520,869,106,946.07
  5. Step 5: Solve for x
    x = 520,869,106,946.07/810,080.52
  6. Step 6: Final answer
    x = 642,984.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.