Home / 890,970.80-1,336,456.20-782,495.60

Finding the Fourth Proportional to 890,970.80, 1,336,456.20 and 782,495.60

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Solution

The fourth proportional to 890,970.80, 1,336,456.20 and 782,495.60 is: 1,173,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,970.80 : 1,336,456.20 = 782,495.60 : x
  2. Step 2: Convert to fraction form
    890,970.80/1,336,456.20 = 782,495.60/x
  3. Step 3: Cross multiply
    890,970.80x = 1,336,456.20 × 782,495.60
  4. Step 4: Simplify right side
    890,970.80x = 1,045,771,096,092.72
  5. Step 5: Solve for x
    x = 1,045,771,096,092.72/890,970.80
  6. Step 6: Final answer
    x = 1,173,743.40

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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.