Home / 1,284,752.20-1,925,126.70-485,597.80

Finding the Fourth Proportional to 1,284,752.20, 1,925,126.70 and 485,597.80

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Solution

The fourth proportional to 1,284,752.20, 1,925,126.70 and 485,597.80 is: 727,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,752.20 : 1,925,126.70 = 485,597.80 : x
  2. Step 2: Convert to fraction form
    1,284,752.20/1,925,126.70 = 485,597.80/x
  3. Step 3: Cross multiply
    1,284,752.20x = 1,925,126.70 × 485,597.80
  4. Step 4: Simplify right side
    1,284,752.20x = 934,837,290,241.26
  5. Step 5: Solve for x
    x = 934,837,290,241.26/1,284,752.20
  6. Step 6: Final answer
    x = 727,640.16

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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.