Home / 863,464.80-1,295,197.20-490,216.80

Finding the Fourth Proportional to 863,464.80, 1,295,197.20 and 490,216.80

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Solution

The fourth proportional to 863,464.80, 1,295,197.20 and 490,216.80 is: 735,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,464.80 : 1,295,197.20 = 490,216.80 : x
  2. Step 2: Convert to fraction form
    863,464.80/1,295,197.20 = 490,216.80/x
  3. Step 3: Cross multiply
    863,464.80x = 1,295,197.20 × 490,216.80
  4. Step 4: Simplify right side
    863,464.80x = 634,927,426,752.96
  5. Step 5: Solve for x
    x = 634,927,426,752.96/863,464.80
  6. Step 6: Final answer
    x = 735,325.20

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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.