Home / 1,510,621.72-2,084,704.92-822,339.40

Finding the Fourth Proportional to 1,510,621.72, 2,084,704.92 and 822,339.40

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Solution

The fourth proportional to 1,510,621.72, 2,084,704.92 and 822,339.40 is: 1,134,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,621.72 : 2,084,704.92 = 822,339.40 : x
  2. Step 2: Convert to fraction form
    1,510,621.72/2,084,704.92 = 822,339.40/x
  3. Step 3: Cross multiply
    1,510,621.72x = 2,084,704.92 × 822,339.40
  4. Step 4: Simplify right side
    1,510,621.72x = 1,714,334,993,089.85
  5. Step 5: Solve for x
    x = 1,714,334,993,089.85/1,510,621.72
  6. Step 6: Final answer
    x = 1,134,853.93

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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.