Home / 879,489.70-1,319,234.55-575,059.30

Finding the Fourth Proportional to 879,489.70, 1,319,234.55 and 575,059.30

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Solution

The fourth proportional to 879,489.70, 1,319,234.55 and 575,059.30 is: 862,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,489.70 : 1,319,234.55 = 575,059.30 : x
  2. Step 2: Convert to fraction form
    879,489.70/1,319,234.55 = 575,059.30/x
  3. Step 3: Cross multiply
    879,489.70x = 1,319,234.55 × 575,059.30
  4. Step 4: Simplify right side
    879,489.70x = 758,638,096,858.82
  5. Step 5: Solve for x
    x = 758,638,096,858.82/879,489.70
  6. Step 6: Final answer
    x = 862,588.95

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Double scale
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Similar ratio
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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.