Home / 630,383.20-869,911.56-343,903.22

Finding the Fourth Proportional to 630,383.20, 869,911.56 and 343,903.22

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Solution

The fourth proportional to 630,383.20, 869,911.56 and 343,903.22 is: 474,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,383.20 : 869,911.56 = 343,903.22 : x
  2. Step 2: Convert to fraction form
    630,383.20/869,911.56 = 343,903.22/x
  3. Step 3: Cross multiply
    630,383.20x = 869,911.56 × 343,903.22
  4. Step 4: Simplify right side
    630,383.20x = 299,165,386,599.22
  5. Step 5: Solve for x
    x = 299,165,386,599.22/630,383.20
  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.