Home / 779,930.40-1,169,895.60-659,661.60

Finding the Fourth Proportional to 779,930.40, 1,169,895.60 and 659,661.60

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Solution

The fourth proportional to 779,930.40, 1,169,895.60 and 659,661.60 is: 989,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,930.40 : 1,169,895.60 = 659,661.60 : x
  2. Step 2: Convert to fraction form
    779,930.40/1,169,895.60 = 659,661.60/x
  3. Step 3: Cross multiply
    779,930.40x = 1,169,895.60 × 659,661.60
  4. Step 4: Simplify right side
    779,930.40x = 771,735,203,328.96
  5. Step 5: Solve for x
    x = 771,735,203,328.96/779,930.40
  6. Step 6: Final answer
    x = 989,492.40

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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.