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Finding the Fourth Proportional to 575,636.40, 863,454.60 and 455,367.60

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Solution

The fourth proportional to 575,636.40, 863,454.60 and 455,367.60 is: 683,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,636.40 : 863,454.60 = 455,367.60 : x
  2. Step 2: Convert to fraction form
    575,636.40/863,454.60 = 455,367.60/x
  3. Step 3: Cross multiply
    575,636.40x = 863,454.60 × 455,367.60
  4. Step 4: Simplify right side
    575,636.40x = 393,189,248,910.96
  5. Step 5: Solve for x
    x = 393,189,248,910.96/575,636.40
  6. Step 6: Final answer
    x = 683,051.40

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Similar ratio
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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.