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Finding the Fourth Proportional to 590,944.80, 885,380.40 and 485,191.20

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Solution

The fourth proportional to 590,944.80, 885,380.40 and 485,191.20 is: 726,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,944.80 : 885,380.40 = 485,191.20 : x
  2. Step 2: Convert to fraction form
    590,944.80/885,380.40 = 485,191.20/x
  3. Step 3: Cross multiply
    590,944.80x = 885,380.40 × 485,191.20
  4. Step 4: Simplify right side
    590,944.80x = 429,578,778,732.48
  5. Step 5: Solve for x
    x = 429,578,778,732.48/590,944.80
  6. Step 6: Final answer
    x = 726,935.54

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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.