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Finding the Fourth Proportional to 455,897.70, 683,846.55 and 434,124.90

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Solution

The fourth proportional to 455,897.70, 683,846.55 and 434,124.90 is: 651,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,897.70 : 683,846.55 = 434,124.90 : x
  2. Step 2: Convert to fraction form
    455,897.70/683,846.55 = 434,124.90/x
  3. Step 3: Cross multiply
    455,897.70x = 683,846.55 × 434,124.90
  4. Step 4: Simplify right side
    455,897.70x = 296,874,815,134.10
  5. Step 5: Solve for x
    x = 296,874,815,134.10/455,897.70
  6. Step 6: Final answer
    x = 651,187.35

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Double scale
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Similar ratio
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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.