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Finding the Fourth Proportional to 637,739.60, 880,086.60 and 351,260.72

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Solution

The fourth proportional to 637,739.60, 880,086.60 and 351,260.72 is: 484,743.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,739.60 : 880,086.60 = 351,260.72 : x
  2. Step 2: Convert to fraction form
    637,739.60/880,086.60 = 351,260.72/x
  3. Step 3: Cross multiply
    637,739.60x = 880,086.60 × 351,260.72
  4. Step 4: Simplify right side
    637,739.60x = 309,139,852,778.35
  5. Step 5: Solve for x
    x = 309,139,852,778.35/637,739.60
  6. Step 6: Final answer
    x = 484,743.07

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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.