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Finding the Fourth Proportional to 591,015.87, 885,250.45 and 400,430.56

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Solution

The fourth proportional to 591,015.87, 885,250.45 and 400,430.56 is: 599,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,015.87 : 885,250.45 = 400,430.56 : x
  2. Step 2: Convert to fraction form
    591,015.87/885,250.45 = 400,430.56/x
  3. Step 3: Cross multiply
    591,015.87x = 885,250.45 × 400,430.56
  4. Step 4: Simplify right side
    591,015.87x = 354,481,333,433.75
  5. Step 5: Solve for x
    x = 354,481,333,433.75/591,015.87
  6. Step 6: Final answer
    x = 599,783.10

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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.