Home / 842,922.90-1,264,384.35-443,409.30

Finding the Fourth Proportional to 842,922.90, 1,264,384.35 and 443,409.30

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Solution

The fourth proportional to 842,922.90, 1,264,384.35 and 443,409.30 is: 665,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,922.90 : 1,264,384.35 = 443,409.30 : x
  2. Step 2: Convert to fraction form
    842,922.90/1,264,384.35 = 443,409.30/x
  3. Step 3: Cross multiply
    842,922.90x = 1,264,384.35 × 443,409.30
  4. Step 4: Simplify right side
    842,922.90x = 560,639,779,564.46
  5. Step 5: Solve for x
    x = 560,639,779,564.46/842,922.90
  6. Step 6: Final answer
    x = 665,113.95

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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.