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Finding the Fourth Proportional to 615,999.87, 850,070.79 and 344,071.71

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Solution

The fourth proportional to 615,999.87, 850,070.79 and 344,071.71 is: 474,813.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,999.87 : 850,070.79 = 344,071.71 : x
  2. Step 2: Convert to fraction form
    615,999.87/850,070.79 = 344,071.71/x
  3. Step 3: Cross multiply
    615,999.87x = 850,070.79 × 344,071.71
  4. Step 4: Simplify right side
    615,999.87x = 292,485,310,336.35
  5. Step 5: Solve for x
    x = 292,485,310,336.35/615,999.87
  6. Step 6: Final answer
    x = 474,813.92

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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.