Home / 1,988,803.80-2,983,205.70-726,467.40

Finding the Fourth Proportional to 1,988,803.80, 2,983,205.70 and 726,467.40

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Solution

The fourth proportional to 1,988,803.80, 2,983,205.70 and 726,467.40 is: 1,089,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,803.80 : 2,983,205.70 = 726,467.40 : x
  2. Step 2: Convert to fraction form
    1,988,803.80/2,983,205.70 = 726,467.40/x
  3. Step 3: Cross multiply
    1,988,803.80x = 2,983,205.70 × 726,467.40
  4. Step 4: Simplify right side
    1,988,803.80x = 2,167,201,688,544.18
  5. Step 5: Solve for x
    x = 2,167,201,688,544.18/1,988,803.80
  6. Step 6: Final answer
    x = 1,089,701.10

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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.