Home / 2,592,712.80-3,889,069.20-909,986.40

Finding the Fourth Proportional to 2,592,712.80, 3,889,069.20 and 909,986.40

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Solution

The fourth proportional to 2,592,712.80, 3,889,069.20 and 909,986.40 is: 1,364,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592,712.80 : 3,889,069.20 = 909,986.40 : x
  2. Step 2: Convert to fraction form
    2,592,712.80/3,889,069.20 = 909,986.40/x
  3. Step 3: Cross multiply
    2,592,712.80x = 3,889,069.20 × 909,986.40
  4. Step 4: Simplify right side
    2,592,712.80x = 3,539,000,080,658.88
  5. Step 5: Solve for x
    x = 3,539,000,080,658.88/2,592,712.80
  6. Step 6: Final answer
    x = 1,364,979.60

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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.