Home / 342,623.70-512,477.55-307,340.10

Finding the Fourth Proportional to 342,623.70, 512,477.55 and 307,340.10

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Solution

The fourth proportional to 342,623.70, 512,477.55 and 307,340.10 is: 459,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,623.70 : 512,477.55 = 307,340.10 : x
  2. Step 2: Convert to fraction form
    342,623.70/512,477.55 = 307,340.10/x
  3. Step 3: Cross multiply
    342,623.70x = 512,477.55 × 307,340.10
  4. Step 4: Simplify right side
    342,623.70x = 157,504,901,464.76
  5. Step 5: Solve for x
    x = 157,504,901,464.76/342,623.70
  6. Step 6: Final answer
    x = 459,702.30

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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.