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Finding the Fourth Proportional to 556,065.36, 833,970.12 and 331,489.20

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Solution

The fourth proportional to 556,065.36, 833,970.12 and 331,489.20 is: 497,157.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,065.36 : 833,970.12 = 331,489.20 : x
  2. Step 2: Convert to fraction form
    556,065.36/833,970.12 = 331,489.20/x
  3. Step 3: Cross multiply
    556,065.36x = 833,970.12 × 331,489.20
  4. Step 4: Simplify right side
    556,065.36x = 276,452,087,902.70
  5. Step 5: Solve for x
    x = 276,452,087,902.70/556,065.36
  6. Step 6: Final answer
    x = 497,157.54

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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.