Home / 630,246.36-869,742.70-343,772.60

Finding the Fourth Proportional to 630,246.36, 869,742.70 and 343,772.60

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Solution

The fourth proportional to 630,246.36, 869,742.70 and 343,772.60 is: 474,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,246.36 : 869,742.70 = 343,772.60 : x
  2. Step 2: Convert to fraction form
    630,246.36/869,742.70 = 343,772.60/x
  3. Step 3: Cross multiply
    630,246.36x = 869,742.70 × 343,772.60
  4. Step 4: Simplify right side
    630,246.36x = 298,993,709,310.02
  5. Step 5: Solve for x
    x = 298,993,709,310.02/630,246.36
  6. Step 6: Final answer
    x = 474,407.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.