Home / 907,743.20-1,361,809.20-276,720.80

Finding the Fourth Proportional to 907,743.20, 1,361,809.20 and 276,720.80

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Solution

The fourth proportional to 907,743.20, 1,361,809.20 and 276,720.80 is: 415,140.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,743.20 : 1,361,809.20 = 276,720.80 : x
  2. Step 2: Convert to fraction form
    907,743.20/1,361,809.20 = 276,720.80/x
  3. Step 3: Cross multiply
    907,743.20x = 1,361,809.20 × 276,720.80
  4. Step 4: Simplify right side
    907,743.20x = 376,840,931,271.36
  5. Step 5: Solve for x
    x = 376,840,931,271.36/907,743.20
  6. Step 6: Final answer
    x = 415,140.46

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1.5x scale

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.