Home / 1,142,255.40-1,709,696.70-1,053,781.80

Finding the Fourth Proportional to 1,142,255.40, 1,709,696.70 and 1,053,781.80

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Solution

The fourth proportional to 1,142,255.40, 1,709,696.70 and 1,053,781.80 is: 1,577,271.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,255.40 : 1,709,696.70 = 1,053,781.80 : x
  2. Step 2: Convert to fraction form
    1,142,255.40/1,709,696.70 = 1,053,781.80/x
  3. Step 3: Cross multiply
    1,142,255.40x = 1,709,696.70 × 1,053,781.80
  4. Step 4: Simplify right side
    1,142,255.40x = 1,801,647,265,980.06
  5. Step 5: Solve for x
    x = 1,801,647,265,980.06/1,142,255.40
  6. Step 6: Final answer
    x = 1,577,271.83

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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.