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Finding the Fourth Proportional to 615,998.46, 850,068.75 and 344,070.30

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Solution

The fourth proportional to 615,998.46, 850,068.75 and 344,070.30 is: 474,811.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,998.46 : 850,068.75 = 344,070.30 : x
  2. Step 2: Convert to fraction form
    615,998.46/850,068.75 = 344,070.30/x
  3. Step 3: Cross multiply
    615,998.46x = 850,068.75 × 344,070.30
  4. Step 4: Simplify right side
    615,998.46x = 292,483,409,833.13
  5. Step 5: Solve for x
    x = 292,483,409,833.13/615,998.46
  6. Step 6: Final answer
    x = 474,811.92

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Double scale
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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.