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Finding the Fourth Proportional to 654,740.08, 903,405.83 and 382,755.38

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Solution

The fourth proportional to 654,740.08, 903,405.83 and 382,755.38 is: 528,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,740.08 : 903,405.83 = 382,755.38 : x
  2. Step 2: Convert to fraction form
    654,740.08/903,405.83 = 382,755.38/x
  3. Step 3: Cross multiply
    654,740.08x = 903,405.83 × 382,755.38
  4. Step 4: Simplify right side
    654,740.08x = 345,783,435,325.06
  5. Step 5: Solve for x
    x = 345,783,435,325.06/654,740.08
  6. Step 6: Final answer
    x = 528,123.22

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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.