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Finding the Fourth Proportional to 476,510.46, 657,771.80 and 285,486.94

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Solution

The fourth proportional to 476,510.46, 657,771.80 and 285,486.94 is: 394,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,510.46 : 657,771.80 = 285,486.94 : x
  2. Step 2: Convert to fraction form
    476,510.46/657,771.80 = 285,486.94/x
  3. Step 3: Cross multiply
    476,510.46x = 657,771.80 × 285,486.94
  4. Step 4: Simplify right side
    476,510.46x = 187,785,258,400.29
  5. Step 5: Solve for x
    x = 187,785,258,400.29/476,510.46
  6. Step 6: Final answer
    x = 394,084.23

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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.