Home / 830,420.40-1,245,630.60-410,516.40

Finding the Fourth Proportional to 830,420.40, 1,245,630.60 and 410,516.40

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Solution

The fourth proportional to 830,420.40, 1,245,630.60 and 410,516.40 is: 615,774.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,420.40 : 1,245,630.60 = 410,516.40 : x
  2. Step 2: Convert to fraction form
    830,420.40/1,245,630.60 = 410,516.40/x
  3. Step 3: Cross multiply
    830,420.40x = 1,245,630.60 × 410,516.40
  4. Step 4: Simplify right side
    830,420.40x = 511,351,789,641.84
  5. Step 5: Solve for x
    x = 511,351,789,641.84/830,420.40
  6. Step 6: Final answer
    x = 615,774.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.