Home / 879,807.78-1,319,734.58-280,768.14

Finding the Fourth Proportional to 879,807.78, 1,319,734.58 and 280,768.14

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Solution

The fourth proportional to 879,807.78, 1,319,734.58 and 280,768.14 is: 421,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,807.78 : 1,319,734.58 = 280,768.14 : x
  2. Step 2: Convert to fraction form
    879,807.78/1,319,734.58 = 280,768.14/x
  3. Step 3: Cross multiply
    879,807.78x = 1,319,734.58 × 280,768.14
  4. Step 4: Simplify right side
    879,807.78x = 370,539,421,916.44
  5. Step 5: Solve for x
    x = 370,539,421,916.44/879,807.78
  6. Step 6: Final answer
    x = 421,159.52

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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.