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Finding the Fourth Proportional to 637,983.82, 880,409.58 and 347,607.48

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Solution

The fourth proportional to 637,983.82, 880,409.58 and 347,607.48 is: 479,693.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,983.82 : 880,409.58 = 347,607.48 : x
  2. Step 2: Convert to fraction form
    637,983.82/880,409.58 = 347,607.48/x
  3. Step 3: Cross multiply
    637,983.82x = 880,409.58 × 347,607.48
  4. Step 4: Simplify right side
    637,983.82x = 306,036,951,069.61
  5. Step 5: Solve for x
    x = 306,036,951,069.61/637,983.82
  6. Step 6: Final answer
    x = 479,693.91

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Double scale
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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.