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Finding the Fourth Proportional to 476,897.30, 658,175.49 and 286,015.70

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Solution

The fourth proportional to 476,897.30, 658,175.49 and 286,015.70 is: 394,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,897.30 : 658,175.49 = 286,015.70 : x
  2. Step 2: Convert to fraction form
    476,897.30/658,175.49 = 286,015.70/x
  3. Step 3: Cross multiply
    476,897.30x = 658,175.49 × 286,015.70
  4. Step 4: Simplify right side
    476,897.30x = 188,248,523,495.19
  5. Step 5: Solve for x
    x = 188,248,523,495.19/476,897.30
  6. Step 6: Final answer
    x = 394,735.98

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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.