Home / 1,292,783.54-1,939,175.30-406,319.54

Finding the Fourth Proportional to 1,292,783.54, 1,939,175.30 and 406,319.54

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Solution

The fourth proportional to 1,292,783.54, 1,939,175.30 and 406,319.54 is: 609,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,783.54 : 1,939,175.30 = 406,319.54 : x
  2. Step 2: Convert to fraction form
    1,292,783.54/1,939,175.30 = 406,319.54/x
  3. Step 3: Cross multiply
    1,292,783.54x = 1,939,175.30 × 406,319.54
  4. Step 4: Simplify right side
    1,292,783.54x = 787,924,804,147.89
  5. Step 5: Solve for x
    x = 787,924,804,147.89/1,292,783.54
  6. Step 6: Final answer
    x = 609,479.30

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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.