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Finding the Fourth Proportional to 630,383.22, 869,911.56 and 343,903.23

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Solution

The fourth proportional to 630,383.22, 869,911.56 and 343,903.23 is: 474,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,383.22 : 869,911.56 = 343,903.23 : x
  2. Step 2: Convert to fraction form
    630,383.22/869,911.56 = 343,903.23/x
  3. Step 3: Cross multiply
    630,383.22x = 869,911.56 × 343,903.23
  4. Step 4: Simplify right side
    630,383.22x = 299,165,395,298.34
  5. Step 5: Solve for x
    x = 299,165,395,298.34/630,383.22
  6. Step 6: Final answer
    x = 474,577.03

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1.5x scale

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.