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Finding the Fourth Proportional to 676,892.81, 934,112.25 and 370,981.34

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Solution

The fourth proportional to 676,892.81, 934,112.25 and 370,981.34 is: 511,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,892.81 : 934,112.25 = 370,981.34 : x
  2. Step 2: Convert to fraction form
    676,892.81/934,112.25 = 370,981.34/x
  3. Step 3: Cross multiply
    676,892.81x = 934,112.25 × 370,981.34
  4. Step 4: Simplify right side
    676,892.81x = 346,538,214,215.42
  5. Step 5: Solve for x
    x = 346,538,214,215.42/676,892.81
  6. Step 6: Final answer
    x = 511,954.34

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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.