Home / 738,741.36-1,108,042.92-317,938.80

Finding the Fourth Proportional to 738,741.36, 1,108,042.92 and 317,938.80

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Solution

The fourth proportional to 738,741.36, 1,108,042.92 and 317,938.80 is: 476,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,741.36 : 1,108,042.92 = 317,938.80 : x
  2. Step 2: Convert to fraction form
    738,741.36/1,108,042.92 = 317,938.80/x
  3. Step 3: Cross multiply
    738,741.36x = 1,108,042.92 × 317,938.80
  4. Step 4: Simplify right side
    738,741.36x = 352,289,836,333.30
  5. Step 5: Solve for x
    x = 352,289,836,333.30/738,741.36
  6. Step 6: Final answer
    x = 476,878.45

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1.5x scale

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.