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Finding the Fourth Proportional to 476,885.80, 658,159.62 and 286,004.20

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Solution

The fourth proportional to 476,885.80, 658,159.62 and 286,004.20 is: 394,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,885.80 : 658,159.62 = 286,004.20 : x
  2. Step 2: Convert to fraction form
    476,885.80/658,159.62 = 286,004.20/x
  3. Step 3: Cross multiply
    476,885.80x = 658,159.62 × 286,004.20
  4. Step 4: Simplify right side
    476,885.80x = 188,236,415,590.40
  5. Step 5: Solve for x
    x = 188,236,415,590.40/476,885.80
  6. Step 6: Final answer
    x = 394,720.11

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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.