Home / 3,516,913.29-5,274,631.62-991,978.05

Finding the Fourth Proportional to 3,516,913.29, 5,274,631.62 and 991,978.05

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Solution

The fourth proportional to 3,516,913.29, 5,274,631.62 and 991,978.05 is: 1,487,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516,913.29 : 5,274,631.62 = 991,978.05 : x
  2. Step 2: Convert to fraction form
    3,516,913.29/5,274,631.62 = 991,978.05/x
  3. Step 3: Cross multiply
    3,516,913.29x = 5,274,631.62 × 991,978.05
  4. Step 4: Simplify right side
    3,516,913.29x = 5,232,318,788,875.94
  5. Step 5: Solve for x
    x = 5,232,318,788,875.94/3,516,913.29
  6. Step 6: Final answer
    x = 1,487,758.83

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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.