Home / 879,380.04-1,319,165.64-280,200.36

Finding the Fourth Proportional to 879,380.04, 1,319,165.64 and 280,200.36

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Solution

The fourth proportional to 879,380.04, 1,319,165.64 and 280,200.36 is: 420,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,380.04 : 1,319,165.64 = 280,200.36 : x
  2. Step 2: Convert to fraction form
    879,380.04/1,319,165.64 = 280,200.36/x
  3. Step 3: Cross multiply
    879,380.04x = 1,319,165.64 × 280,200.36
  4. Step 4: Simplify right side
    879,380.04x = 369,630,687,227.63
  5. Step 5: Solve for x
    x = 369,630,687,227.63/879,380.04
  6. Step 6: Final answer
    x = 420,331.00

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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.