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Finding the Fourth Proportional to 616,128.48, 850,173.12 and 344,161.68

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Solution

The fourth proportional to 616,128.48, 850,173.12 and 344,161.68 is: 474,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,128.48 : 850,173.12 = 344,161.68 : x
  2. Step 2: Convert to fraction form
    616,128.48/850,173.12 = 344,161.68/x
  3. Step 3: Cross multiply
    616,128.48x = 850,173.12 × 344,161.68
  4. Step 4: Simplify right side
    616,128.48x = 292,597,009,270.04
  5. Step 5: Solve for x
    x = 292,597,009,270.04/616,128.48
  6. Step 6: Final answer
    x = 474,896.10

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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.