Home / 913,310.40-1,369,965.60-493,406.40

Finding the Fourth Proportional to 913,310.40, 1,369,965.60 and 493,406.40

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Solution

The fourth proportional to 913,310.40, 1,369,965.60 and 493,406.40 is: 740,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,310.40 : 1,369,965.60 = 493,406.40 : x
  2. Step 2: Convert to fraction form
    913,310.40/1,369,965.60 = 493,406.40/x
  3. Step 3: Cross multiply
    913,310.40x = 1,369,965.60 × 493,406.40
  4. Step 4: Simplify right side
    913,310.40x = 675,949,794,819.84
  5. Step 5: Solve for x
    x = 675,949,794,819.84/913,310.40
  6. Step 6: Final answer
    x = 740,109.60

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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.