Home / 700,132.80-1,047,866.40-644,145.60

Finding the Fourth Proportional to 700,132.80, 1,047,866.40 and 644,145.60

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Solution

The fourth proportional to 700,132.80, 1,047,866.40 and 644,145.60 is: 964,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,132.80 : 1,047,866.40 = 644,145.60 : x
  2. Step 2: Convert to fraction form
    700,132.80/1,047,866.40 = 644,145.60/x
  3. Step 3: Cross multiply
    700,132.80x = 1,047,866.40 × 644,145.60
  4. Step 4: Simplify right side
    700,132.80x = 674,978,530,947.84
  5. Step 5: Solve for x
    x = 674,978,530,947.84/700,132.80
  6. Step 6: Final answer
    x = 964,072.15

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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.