Home / 1,989,924.80-2,746,105.32-1,130,532.21

Finding the Fourth Proportional to 1,989,924.80, 2,746,105.32 and 1,130,532.21

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Solution

The fourth proportional to 1,989,924.80, 2,746,105.32 and 1,130,532.21 is: 1,560,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,924.80 : 2,746,105.32 = 1,130,532.21 : x
  2. Step 2: Convert to fraction form
    1,989,924.80/2,746,105.32 = 1,130,532.21/x
  3. Step 3: Cross multiply
    1,989,924.80x = 2,746,105.32 × 1,130,532.21
  4. Step 4: Simplify right side
    1,989,924.80x = 3,104,560,516,312.36
  5. Step 5: Solve for x
    x = 3,104,560,516,312.36/1,989,924.80
  6. Step 6: Final answer
    x = 1,560,139.62

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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.