Home / 789,320.43-1,183,964.13-315,878.67

Finding the Fourth Proportional to 789,320.43, 1,183,964.13 and 315,878.67

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Solution

The fourth proportional to 789,320.43, 1,183,964.13 and 315,878.67 is: 473,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,320.43 : 1,183,964.13 = 315,878.67 : x
  2. Step 2: Convert to fraction form
    789,320.43/1,183,964.13 = 315,878.67/x
  3. Step 3: Cross multiply
    789,320.43x = 1,183,964.13 × 315,878.67
  4. Step 4: Simplify right side
    789,320.43x = 373,989,014,712.11
  5. Step 5: Solve for x
    x = 373,989,014,712.11/789,320.43
  6. Step 6: Final answer
    x = 473,811.40

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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.