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Finding the Fourth Proportional to 654,079.74, 902,548.86 and 378,484.92

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Solution

The fourth proportional to 654,079.74, 902,548.86 and 378,484.92 is: 522,262.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,079.74 : 902,548.86 = 378,484.92 : x
  2. Step 2: Convert to fraction form
    654,079.74/902,548.86 = 378,484.92/x
  3. Step 3: Cross multiply
    654,079.74x = 902,548.86 × 378,484.92
  4. Step 4: Simplify right side
    654,079.74x = 341,601,133,073.19
  5. Step 5: Solve for x
    x = 341,601,133,073.19/654,079.74
  6. Step 6: Final answer
    x = 522,262.21

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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.