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Finding the Fourth Proportional to 418,768.51, 578,003.22 and 237,586.49

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Solution

The fourth proportional to 418,768.51, 578,003.22 and 237,586.49 is: 327,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,768.51 : 578,003.22 = 237,586.49 : x
  2. Step 2: Convert to fraction form
    418,768.51/578,003.22 = 237,586.49/x
  3. Step 3: Cross multiply
    418,768.51x = 578,003.22 × 237,586.49
  4. Step 4: Simplify right side
    418,768.51x = 137,325,756,483.42
  5. Step 5: Solve for x
    x = 137,325,756,483.42/418,768.51
  6. Step 6: Final answer
    x = 327,927.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.