Home / 1,386,927.89-1,913,967.58-775,090.89

Finding the Fourth Proportional to 1,386,927.89, 1,913,967.58 and 775,090.89

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Solution

The fourth proportional to 1,386,927.89, 1,913,967.58 and 775,090.89 is: 1,069,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,927.89 : 1,913,967.58 = 775,090.89 : x
  2. Step 2: Convert to fraction form
    1,386,927.89/1,913,967.58 = 775,090.89/x
  3. Step 3: Cross multiply
    1,386,927.89x = 1,913,967.58 × 775,090.89
  4. Step 4: Simplify right side
    1,386,927.89x = 1,483,498,831,137.89
  5. Step 5: Solve for x
    x = 1,483,498,831,137.89/1,386,927.89
  6. Step 6: Final answer
    x = 1,069,629.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.