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Finding the Fourth Proportional to 590,946.80, 885,383.40 and 485,193.20

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Solution

The fourth proportional to 590,946.80, 885,383.40 and 485,193.20 is: 726,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,946.80 : 885,383.40 = 485,193.20 : x
  2. Step 2: Convert to fraction form
    590,946.80/885,383.40 = 485,193.20/x
  3. Step 3: Cross multiply
    590,946.80x = 885,383.40 × 485,193.20
  4. Step 4: Simplify right side
    590,946.80x = 429,582,005,072.88
  5. Step 5: Solve for x
    x = 429,582,005,072.88/590,946.80
  6. Step 6: Final answer
    x = 726,938.54

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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.