Home / 785,128.40-1,177,846.20-335,848.40

Finding the Fourth Proportional to 785,128.40, 1,177,846.20 and 335,848.40

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Solution

The fourth proportional to 785,128.40, 1,177,846.20 and 335,848.40 is: 503,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,128.40 : 1,177,846.20 = 335,848.40 : x
  2. Step 2: Convert to fraction form
    785,128.40/1,177,846.20 = 335,848.40/x
  3. Step 3: Cross multiply
    785,128.40x = 1,177,846.20 × 335,848.40
  4. Step 4: Simplify right side
    785,128.40x = 395,577,761,716.08
  5. Step 5: Solve for x
    x = 395,577,761,716.08/785,128.40
  6. Step 6: Final answer
    x = 503,838.30

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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.