Home / 789,311.70-1,183,189.95-390,014.10

Finding the Fourth Proportional to 789,311.70, 1,183,189.95 and 390,014.10

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Solution

The fourth proportional to 789,311.70, 1,183,189.95 and 390,014.10 is: 584,636.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,311.70 : 1,183,189.95 = 390,014.10 : x
  2. Step 2: Convert to fraction form
    789,311.70/1,183,189.95 = 390,014.10/x
  3. Step 3: Cross multiply
    789,311.70x = 1,183,189.95 × 390,014.10
  4. Step 4: Simplify right side
    789,311.70x = 461,460,763,478.30
  5. Step 5: Solve for x
    x = 461,460,763,478.30/789,311.70
  6. Step 6: Final answer
    x = 584,636.92

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Double scale
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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.