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Finding the Fourth Proportional to 575,464.30, 863,196.45 and 486,890.80

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Solution

The fourth proportional to 575,464.30, 863,196.45 and 486,890.80 is: 730,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,464.30 : 863,196.45 = 486,890.80 : x
  2. Step 2: Convert to fraction form
    575,464.30/863,196.45 = 486,890.80/x
  3. Step 3: Cross multiply
    575,464.30x = 863,196.45 × 486,890.80
  4. Step 4: Simplify right side
    575,464.30x = 420,282,410,097.66
  5. Step 5: Solve for x
    x = 420,282,410,097.66/575,464.30
  6. Step 6: Final answer
    x = 730,336.20

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Double scale
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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.