Home / 1,275,673.60-1,915,065.60-644,262.40

Finding the Fourth Proportional to 1,275,673.60, 1,915,065.60 and 644,262.40

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Solution

The fourth proportional to 1,275,673.60, 1,915,065.60 and 644,262.40 is: 967,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,673.60 : 1,915,065.60 = 644,262.40 : x
  2. Step 2: Convert to fraction form
    1,275,673.60/1,915,065.60 = 644,262.40/x
  3. Step 3: Cross multiply
    1,275,673.60x = 1,915,065.60 × 644,262.40
  4. Step 4: Simplify right side
    1,275,673.60x = 1,233,804,759,613.44
  5. Step 5: Solve for x
    x = 1,233,804,759,613.44/1,275,673.60
  6. Step 6: Final answer
    x = 967,179.03

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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.