Home / 756,042.40-1,134,063.60-456,860.80

Finding the Fourth Proportional to 756,042.40, 1,134,063.60 and 456,860.80

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Solution

The fourth proportional to 756,042.40, 1,134,063.60 and 456,860.80 is: 685,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,042.40 : 1,134,063.60 = 456,860.80 : x
  2. Step 2: Convert to fraction form
    756,042.40/1,134,063.60 = 456,860.80/x
  3. Step 3: Cross multiply
    756,042.40x = 1,134,063.60 × 456,860.80
  4. Step 4: Simplify right side
    756,042.40x = 518,109,203,546.88
  5. Step 5: Solve for x
    x = 518,109,203,546.88/756,042.40
  6. Step 6: Final answer
    x = 685,291.20

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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.