Home / 928,405.80-1,392,414.30-455,430.60

Finding the Fourth Proportional to 928,405.80, 1,392,414.30 and 455,430.60

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Solution

The fourth proportional to 928,405.80, 1,392,414.30 and 455,430.60 is: 683,050.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,405.80 : 1,392,414.30 = 455,430.60 : x
  2. Step 2: Convert to fraction form
    928,405.80/1,392,414.30 = 455,430.60/x
  3. Step 3: Cross multiply
    928,405.80x = 1,392,414.30 × 455,430.60
  4. Step 4: Simplify right side
    928,405.80x = 634,148,080,097.58
  5. Step 5: Solve for x
    x = 634,148,080,097.58/928,405.80
  6. Step 6: Final answer
    x = 683,050.54

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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.