Home / 756,010.40-1,134,015.60-456,828.80

Finding the Fourth Proportional to 756,010.40, 1,134,015.60 and 456,828.80

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Solution

The fourth proportional to 756,010.40, 1,134,015.60 and 456,828.80 is: 685,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,010.40 : 1,134,015.60 = 456,828.80 : x
  2. Step 2: Convert to fraction form
    756,010.40/1,134,015.60 = 456,828.80/x
  3. Step 3: Cross multiply
    756,010.40x = 1,134,015.60 × 456,828.80
  4. Step 4: Simplify right side
    756,010.40x = 518,050,985,729.28
  5. Step 5: Solve for x
    x = 518,050,985,729.28/756,010.40
  6. Step 6: Final answer
    x = 685,243.20

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Similar ratio
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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.