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Finding the Fourth Proportional to 637,984.82, 880,410.96 and 347,608.48

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Solution

The fourth proportional to 637,984.82, 880,410.96 and 347,608.48 is: 479,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,984.82 : 880,410.96 = 347,608.48 : x
  2. Step 2: Convert to fraction form
    637,984.82/880,410.96 = 347,608.48/x
  3. Step 3: Cross multiply
    637,984.82x = 880,410.96 × 347,608.48
  4. Step 4: Simplify right side
    637,984.82x = 306,038,311,178.89
  5. Step 5: Solve for x
    x = 306,038,311,178.89/637,984.82
  6. Step 6: Final answer
    x = 479,695.29

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1.5x scale

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.