Home / 879,576.30-1,319,340.15-280,573.20

Finding the Fourth Proportional to 879,576.30, 1,319,340.15 and 280,573.20

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Solution

The fourth proportional to 879,576.30, 1,319,340.15 and 280,573.20 is: 420,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,576.30 : 1,319,340.15 = 280,573.20 : x
  2. Step 2: Convert to fraction form
    879,576.30/1,319,340.15 = 280,573.20/x
  3. Step 3: Cross multiply
    879,576.30x = 1,319,340.15 × 280,573.20
  4. Step 4: Simplify right side
    879,576.30x = 370,171,487,773.98
  5. Step 5: Solve for x
    x = 370,171,487,773.98/879,576.30
  6. Step 6: Final answer
    x = 420,852.05

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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.