Home / 1,281,770.20-1,921,100.10-571,043.80

Finding the Fourth Proportional to 1,281,770.20, 1,921,100.10 and 571,043.80

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Solution

The fourth proportional to 1,281,770.20, 1,921,100.10 and 571,043.80 is: 855,872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,770.20 : 1,921,100.10 = 571,043.80 : x
  2. Step 2: Convert to fraction form
    1,281,770.20/1,921,100.10 = 571,043.80/x
  3. Step 3: Cross multiply
    1,281,770.20x = 1,921,100.10 × 571,043.80
  4. Step 4: Simplify right side
    1,281,770.20x = 1,097,032,301,284.38
  5. Step 5: Solve for x
    x = 1,097,032,301,284.38/1,281,770.20
  6. Step 6: Final answer
    x = 855,872.84

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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.