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Finding the Fourth Proportional to 377,999.10, 566,998.65 and 320,918.40

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Solution

The fourth proportional to 377,999.10, 566,998.65 and 320,918.40 is: 481,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,999.10 : 566,998.65 = 320,918.40 : x
  2. Step 2: Convert to fraction form
    377,999.10/566,998.65 = 320,918.40/x
  3. Step 3: Cross multiply
    377,999.10x = 566,998.65 × 320,918.40
  4. Step 4: Simplify right side
    377,999.10x = 181,960,299,560.16
  5. Step 5: Solve for x
    x = 181,960,299,560.16/377,999.10
  6. Step 6: Final answer
    x = 481,377.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.