Home / 842,586.86-1,264,199.45-505,862.67

Finding the Fourth Proportional to 842,586.86, 1,264,199.45 and 505,862.67

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Solution

The fourth proportional to 842,586.86, 1,264,199.45 and 505,862.67 is: 758,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,586.86 : 1,264,199.45 = 505,862.67 : x
  2. Step 2: Convert to fraction form
    842,586.86/1,264,199.45 = 505,862.67/x
  3. Step 3: Cross multiply
    842,586.86x = 1,264,199.45 × 505,862.67
  4. Step 4: Simplify right side
    842,586.86x = 639,511,307,135.32
  5. Step 5: Solve for x
    x = 639,511,307,135.32/842,586.86
  6. Step 6: Final answer
    x = 758,985.62

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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.