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Finding the Fourth Proportional to 570,908.80, 856,581.90 and 561,942.10

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Solution

The fourth proportional to 570,908.80, 856,581.90 and 561,942.10 is: 843,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,908.80 : 856,581.90 = 561,942.10 : x
  2. Step 2: Convert to fraction form
    570,908.80/856,581.90 = 561,942.10/x
  3. Step 3: Cross multiply
    570,908.80x = 856,581.90 × 561,942.10
  4. Step 4: Simplify right side
    570,908.80x = 481,349,431,707.99
  5. Step 5: Solve for x
    x = 481,349,431,707.99/570,908.80
  6. Step 6: Final answer
    x = 843,128.42

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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.