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Finding the Fourth Proportional to 556,278.30, 834,417.45 and 331,892.10

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Solution

The fourth proportional to 556,278.30, 834,417.45 and 331,892.10 is: 497,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,278.30 : 834,417.45 = 331,892.10 : x
  2. Step 2: Convert to fraction form
    556,278.30/834,417.45 = 331,892.10/x
  3. Step 3: Cross multiply
    556,278.30x = 834,417.45 × 331,892.10
  4. Step 4: Simplify right side
    556,278.30x = 276,936,559,757.15
  5. Step 5: Solve for x
    x = 276,936,559,757.15/556,278.30
  6. Step 6: Final answer
    x = 497,838.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.