Home / 4,257,679.20-6,386,518.80-3,909,314.40

Finding the Fourth Proportional to 4,257,679.20, 6,386,518.80 and 3,909,314.40

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Solution

The fourth proportional to 4,257,679.20, 6,386,518.80 and 3,909,314.40 is: 5,863,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257,679.20 : 6,386,518.80 = 3,909,314.40 : x
  2. Step 2: Convert to fraction form
    4,257,679.20/6,386,518.80 = 3,909,314.40/x
  3. Step 3: Cross multiply
    4,257,679.20x = 6,386,518.80 × 3,909,314.40
  4. Step 4: Simplify right side
    4,257,679.20x = 24,966,909,910,710.72
  5. Step 5: Solve for x
    x = 24,966,909,910,710.72/4,257,679.20
  6. Step 6: Final answer
    x = 5,863,971.60

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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.