Home / 738,743.36-1,108,045.92-317,940.80

Finding the Fourth Proportional to 738,743.36, 1,108,045.92 and 317,940.80

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Solution

The fourth proportional to 738,743.36, 1,108,045.92 and 317,940.80 is: 476,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,743.36 : 1,108,045.92 = 317,940.80 : x
  2. Step 2: Convert to fraction form
    738,743.36/1,108,045.92 = 317,940.80/x
  3. Step 3: Cross multiply
    738,743.36x = 1,108,045.92 × 317,940.80
  4. Step 4: Simplify right side
    738,743.36x = 352,293,006,241.54
  5. Step 5: Solve for x
    x = 352,293,006,241.54/738,743.36
  6. Step 6: Final answer
    x = 476,881.45

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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.