Home / 886,542.75-1,330,000.95-287,457.21

Finding the Fourth Proportional to 886,542.75, 1,330,000.95 and 287,457.21

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Solution

The fourth proportional to 886,542.75, 1,330,000.95 and 287,457.21 is: 431,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,542.75 : 1,330,000.95 = 287,457.21 : x
  2. Step 2: Convert to fraction form
    886,542.75/1,330,000.95 = 287,457.21/x
  3. Step 3: Cross multiply
    886,542.75x = 1,330,000.95 × 287,457.21
  4. Step 4: Simplify right side
    886,542.75x = 382,318,362,384.35
  5. Step 5: Solve for x
    x = 382,318,362,384.35/886,542.75
  6. Step 6: Final answer
    x = 431,246.39

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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.