Home / 879,798.53-1,319,720.86-280,759.11

Finding the Fourth Proportional to 879,798.53, 1,319,720.86 and 280,759.11

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Solution

The fourth proportional to 879,798.53, 1,319,720.86 and 280,759.11 is: 421,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,798.53 : 1,319,720.86 = 280,759.11 : x
  2. Step 2: Convert to fraction form
    879,798.53/1,319,720.86 = 280,759.11/x
  3. Step 3: Cross multiply
    879,798.53x = 1,319,720.86 × 280,759.11
  4. Step 4: Simplify right side
    879,798.53x = 370,523,654,102.04
  5. Step 5: Solve for x
    x = 370,523,654,102.04/879,798.53
  6. Step 6: Final answer
    x = 421,146.03

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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.