Home / 847,128.38-1,169,045.36-465,163.36

Finding the Fourth Proportional to 847,128.38, 1,169,045.36 and 465,163.36

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Solution

The fourth proportional to 847,128.38, 1,169,045.36 and 465,163.36 is: 641,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,128.38 : 1,169,045.36 = 465,163.36 : x
  2. Step 2: Convert to fraction form
    847,128.38/1,169,045.36 = 465,163.36/x
  3. Step 3: Cross multiply
    847,128.38x = 1,169,045.36 × 465,163.36
  4. Step 4: Simplify right side
    847,128.38x = 543,797,064,145.94
  5. Step 5: Solve for x
    x = 543,797,064,145.94/847,128.38
  6. Step 6: Final answer
    x = 641,929.94

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1.5x scale

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.