Home / 902,852.12-1,353,111.78-429,682.52

Finding the Fourth Proportional to 902,852.12, 1,353,111.78 and 429,682.52

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Solution

The fourth proportional to 902,852.12, 1,353,111.78 and 429,682.52 is: 643,968.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,852.12 : 1,353,111.78 = 429,682.52 : x
  2. Step 2: Convert to fraction form
    902,852.12/1,353,111.78 = 429,682.52/x
  3. Step 3: Cross multiply
    902,852.12x = 1,353,111.78 × 429,682.52
  4. Step 4: Simplify right side
    902,852.12x = 581,408,479,472.09
  5. Step 5: Solve for x
    x = 581,408,479,472.09/902,852.12
  6. Step 6: Final answer
    x = 643,968.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.