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Finding the Fourth Proportional to 637,983.32, 880,408.89 and 347,606.98

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Solution

The fourth proportional to 637,983.32, 880,408.89 and 347,606.98 is: 479,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,983.32 : 880,408.89 = 347,606.98 : x
  2. Step 2: Convert to fraction form
    637,983.32/880,408.89 = 347,606.98/x
  3. Step 3: Cross multiply
    637,983.32x = 880,408.89 × 347,606.98
  4. Step 4: Simplify right side
    637,983.32x = 306,036,271,016.01
  5. Step 5: Solve for x
    x = 306,036,271,016.01/637,983.32
  6. Step 6: Final answer
    x = 479,693.22

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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.