Home / 630,306.45-869,829.21-343,832.58

Finding the Fourth Proportional to 630,306.45, 869,829.21 and 343,832.58

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Solution

The fourth proportional to 630,306.45, 869,829.21 and 343,832.58 is: 474,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,306.45 : 869,829.21 = 343,832.58 : x
  2. Step 2: Convert to fraction form
    630,306.45/869,829.21 = 343,832.58/x
  3. Step 3: Cross multiply
    630,306.45x = 869,829.21 × 343,832.58
  4. Step 4: Simplify right side
    630,306.45x = 299,075,621,433.66
  5. Step 5: Solve for x
    x = 299,075,621,433.66/630,306.45
  6. Step 6: Final answer
    x = 474,492.40

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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.