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Finding the Fourth Proportional to 555,890.04, 767,128.22 and 301,241.23

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Solution

The fourth proportional to 555,890.04, 767,128.22 and 301,241.23 is: 415,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,890.04 : 767,128.22 = 301,241.23 : x
  2. Step 2: Convert to fraction form
    555,890.04/767,128.22 = 301,241.23/x
  3. Step 3: Cross multiply
    555,890.04x = 767,128.22 × 301,241.23
  4. Step 4: Simplify right side
    555,890.04x = 231,090,646,266.14
  5. Step 5: Solve for x
    x = 231,090,646,266.14/555,890.04
  6. Step 6: Final answer
    x = 415,712.87

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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.