Home / 589,784.80-883,704.40-340,031.20

Finding the Fourth Proportional to 589,784.80, 883,704.40 and 340,031.20

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Solution

The fourth proportional to 589,784.80, 883,704.40 and 340,031.20 is: 509,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,784.80 : 883,704.40 = 340,031.20 : x
  2. Step 2: Convert to fraction form
    589,784.80/883,704.40 = 340,031.20/x
  3. Step 3: Cross multiply
    589,784.80x = 883,704.40 × 340,031.20
  4. Step 4: Simplify right side
    589,784.80x = 300,487,067,577.28
  5. Step 5: Solve for x
    x = 300,487,067,577.28/589,784.80
  6. Step 6: Final answer
    x = 509,485.95

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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.