Home / 774,638.40-1,158,847.20-670,612.80

Finding the Fourth Proportional to 774,638.40, 1,158,847.20 and 670,612.80

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Solution

The fourth proportional to 774,638.40, 1,158,847.20 and 670,612.80 is: 1,003,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,638.40 : 1,158,847.20 = 670,612.80 : x
  2. Step 2: Convert to fraction form
    774,638.40/1,158,847.20 = 670,612.80/x
  3. Step 3: Cross multiply
    774,638.40x = 1,158,847.20 × 670,612.80
  4. Step 4: Simplify right side
    774,638.40x = 777,137,765,564.16
  5. Step 5: Solve for x
    x = 777,137,765,564.16/774,638.40
  6. Step 6: Final answer
    x = 1,003,226.49

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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.