Home / 1,276,497.75-1,915,074.77-477,790.77

Finding the Fourth Proportional to 1,276,497.75, 1,915,074.77 and 477,790.77

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Solution

The fourth proportional to 1,276,497.75, 1,915,074.77 and 477,790.77 is: 716,808.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,497.75 : 1,915,074.77 = 477,790.77 : x
  2. Step 2: Convert to fraction form
    1,276,497.75/1,915,074.77 = 477,790.77/x
  3. Step 3: Cross multiply
    1,276,497.75x = 1,915,074.77 × 477,790.77
  4. Step 4: Simplify right side
    1,276,497.75x = 915,005,046,576.92
  5. Step 5: Solve for x
    x = 915,005,046,576.92/1,276,497.75
  6. Step 6: Final answer
    x = 716,808.98

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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.