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Finding the Fourth Proportional to 676,890.75, 934,119.60 and 370,964.64

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Solution

The fourth proportional to 676,890.75, 934,119.60 and 370,964.64 is: 511,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,890.75 : 934,119.60 = 370,964.64 : x
  2. Step 2: Convert to fraction form
    676,890.75/934,119.60 = 370,964.64/x
  3. Step 3: Cross multiply
    676,890.75x = 934,119.60 × 370,964.64
  4. Step 4: Simplify right side
    676,890.75x = 346,525,341,130.94
  5. Step 5: Solve for x
    x = 346,525,341,130.94/676,890.75
  6. Step 6: Final answer
    x = 511,936.88

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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.