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Finding the Fourth Proportional to 476,898.80, 658,177.56 and 286,017.20

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Solution

The fourth proportional to 476,898.80, 658,177.56 and 286,017.20 is: 394,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,898.80 : 658,177.56 = 286,017.20 : x
  2. Step 2: Convert to fraction form
    476,898.80/658,177.56 = 286,017.20/x
  3. Step 3: Cross multiply
    476,898.80x = 658,177.56 × 286,017.20
  4. Step 4: Simplify right side
    476,898.80x = 188,250,102,814.03
  5. Step 5: Solve for x
    x = 188,250,102,814.03/476,898.80
  6. Step 6: Final answer
    x = 394,738.05

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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.