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Finding the Fourth Proportional to 1,784,257.60, 2,675,500.80 and 646,974.40

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Solution

The fourth proportional to 1,784,257.60, 2,675,500.80 and 646,974.40 is: 970,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784,257.60 : 2,675,500.80 = 646,974.40 : x
  2. Step 2: Convert to fraction form
    1,784,257.60/2,675,500.80 = 646,974.40/x
  3. Step 3: Cross multiply
    1,784,257.60x = 2,675,500.80 × 646,974.40
  4. Step 4: Simplify right side
    1,784,257.60x = 1,730,980,524,779.52
  5. Step 5: Solve for x
    x = 1,730,980,524,779.52/1,784,257.60
  6. Step 6: Final answer
    x = 970,140.48

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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.