Home / 874,093.16-1,311,139.73-313,521.32

Finding the Fourth Proportional to 874,093.16, 1,311,139.73 and 313,521.32

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Solution

The fourth proportional to 874,093.16, 1,311,139.73 and 313,521.32 is: 470,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,093.16 : 1,311,139.73 = 313,521.32 : x
  2. Step 2: Convert to fraction form
    874,093.16/1,311,139.73 = 313,521.32/x
  3. Step 3: Cross multiply
    874,093.16x = 1,311,139.73 × 313,521.32
  4. Step 4: Simplify right side
    874,093.16x = 411,070,253,082.15
  5. Step 5: Solve for x
    x = 411,070,253,082.15/874,093.16
  6. Step 6: Final answer
    x = 470,281.97

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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.