Home / 886,684.10-1,330,220.55-287,543.30

Finding the Fourth Proportional to 886,684.10, 1,330,220.55 and 287,543.30

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Solution

The fourth proportional to 886,684.10, 1,330,220.55 and 287,543.30 is: 431,377.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,684.10 : 1,330,220.55 = 287,543.30 : x
  2. Step 2: Convert to fraction form
    886,684.10/1,330,220.55 = 287,543.30/x
  3. Step 3: Cross multiply
    886,684.10x = 1,330,220.55 × 287,543.30
  4. Step 4: Simplify right side
    886,684.10x = 382,496,006,674.82
  5. Step 5: Solve for x
    x = 382,496,006,674.82/886,684.10
  6. Step 6: Final answer
    x = 431,377.99

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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.