Home / 1,345,981.70-2,014,051.80-991,687.70

Finding the Fourth Proportional to 1,345,981.70, 2,014,051.80 and 991,687.70

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Solution

The fourth proportional to 1,345,981.70, 2,014,051.80 and 991,687.70 is: 1,483,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,981.70 : 2,014,051.80 = 991,687.70 : x
  2. Step 2: Convert to fraction form
    1,345,981.70/2,014,051.80 = 991,687.70/x
  3. Step 3: Cross multiply
    1,345,981.70x = 2,014,051.80 × 991,687.70
  4. Step 4: Simplify right side
    1,345,981.70x = 1,997,310,397,222.86
  5. Step 5: Solve for x
    x = 1,997,310,397,222.86/1,345,981.70
  6. Step 6: Final answer
    x = 1,483,906.06

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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.