Home / 630,290.28-869,806.12-343,811.64

Finding the Fourth Proportional to 630,290.28, 869,806.12 and 343,811.64

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Solution

The fourth proportional to 630,290.28, 869,806.12 and 343,811.64 is: 474,463.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,290.28 : 869,806.12 = 343,811.64 : x
  2. Step 2: Convert to fraction form
    630,290.28/869,806.12 = 343,811.64/x
  3. Step 3: Cross multiply
    630,290.28x = 869,806.12 × 343,811.64
  4. Step 4: Simplify right side
    630,290.28x = 299,049,468,599.24
  5. Step 5: Solve for x
    x = 299,049,468,599.24/630,290.28
  6. Step 6: Final answer
    x = 474,463.08

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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.