Home / 630,315.58-869,829.93-343,829.50

Finding the Fourth Proportional to 630,315.58, 869,829.93 and 343,829.50

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Solution

The fourth proportional to 630,315.58, 869,829.93 and 343,829.50 is: 474,481.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,315.58 : 869,829.93 = 343,829.50 : x
  2. Step 2: Convert to fraction form
    630,315.58/869,829.93 = 343,829.50/x
  3. Step 3: Cross multiply
    630,315.58x = 869,829.93 × 343,829.50
  4. Step 4: Simplify right side
    630,315.58x = 299,073,189,916.94
  5. Step 5: Solve for x
    x = 299,073,189,916.94/630,315.58
  6. Step 6: Final answer
    x = 474,481.67

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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.