Home / 779,874.40-1,169,811.60-509,269.60

Finding the Fourth Proportional to 779,874.40, 1,169,811.60 and 509,269.60

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Solution

The fourth proportional to 779,874.40, 1,169,811.60 and 509,269.60 is: 763,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,874.40 : 1,169,811.60 = 509,269.60 : x
  2. Step 2: Convert to fraction form
    779,874.40/1,169,811.60 = 509,269.60/x
  3. Step 3: Cross multiply
    779,874.40x = 1,169,811.60 × 509,269.60
  4. Step 4: Simplify right side
    779,874.40x = 595,749,485,607.36
  5. Step 5: Solve for x
    x = 595,749,485,607.36/779,874.40
  6. Step 6: Final answer
    x = 763,904.40

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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.