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Finding the Fourth Proportional to 455,868.40, 683,802.60 and 329,897.20

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Solution

The fourth proportional to 455,868.40, 683,802.60 and 329,897.20 is: 494,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,868.40 : 683,802.60 = 329,897.20 : x
  2. Step 2: Convert to fraction form
    455,868.40/683,802.60 = 329,897.20/x
  3. Step 3: Cross multiply
    455,868.40x = 683,802.60 × 329,897.20
  4. Step 4: Simplify right side
    455,868.40x = 225,584,563,092.72
  5. Step 5: Solve for x
    x = 225,584,563,092.72/455,868.40
  6. Step 6: Final answer
    x = 494,845.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.