Home / 1,989,902.30-2,746,074.42-1,130,509.70

Finding the Fourth Proportional to 1,989,902.30, 2,746,074.42 and 1,130,509.70

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Solution

The fourth proportional to 1,989,902.30, 2,746,074.42 and 1,130,509.70 is: 1,560,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,902.30 : 2,746,074.42 = 1,130,509.70 : x
  2. Step 2: Convert to fraction form
    1,989,902.30/2,746,074.42 = 1,130,509.70/x
  3. Step 3: Cross multiply
    1,989,902.30x = 2,746,074.42 × 1,130,509.70
  4. Step 4: Simplify right side
    1,989,902.30x = 3,104,463,768,731.87
  5. Step 5: Solve for x
    x = 3,104,463,768,731.87/1,989,902.30
  6. Step 6: Final answer
    x = 1,560,108.64

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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.