Home / 770,740.80-1,156,111.20-718,252.80

Finding the Fourth Proportional to 770,740.80, 1,156,111.20 and 718,252.80

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Solution

The fourth proportional to 770,740.80, 1,156,111.20 and 718,252.80 is: 1,077,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,740.80 : 1,156,111.20 = 718,252.80 : x
  2. Step 2: Convert to fraction form
    770,740.80/1,156,111.20 = 718,252.80/x
  3. Step 3: Cross multiply
    770,740.80x = 1,156,111.20 × 718,252.80
  4. Step 4: Simplify right side
    770,740.80x = 830,380,106,511.36
  5. Step 5: Solve for x
    x = 830,380,106,511.36/770,740.80
  6. Step 6: Final answer
    x = 1,077,379.20

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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.