Home / 879,872.89-1,214,243.03-497,899.57

Finding the Fourth Proportional to 879,872.89, 1,214,243.03 and 497,899.57

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Solution

The fourth proportional to 879,872.89, 1,214,243.03 and 497,899.57 is: 687,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,872.89 : 1,214,243.03 = 497,899.57 : x
  2. Step 2: Convert to fraction form
    879,872.89/1,214,243.03 = 497,899.57/x
  3. Step 3: Cross multiply
    879,872.89x = 1,214,243.03 × 497,899.57
  4. Step 4: Simplify right side
    879,872.89x = 604,571,082,512.50
  5. Step 5: Solve for x
    x = 604,571,082,512.50/879,872.89
  6. Step 6: Final answer
    x = 687,111.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.