Home / 920,296.89-1,269,994.55-538,388.37

Finding the Fourth Proportional to 920,296.89, 1,269,994.55 and 538,388.37

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Solution

The fourth proportional to 920,296.89, 1,269,994.55 and 538,388.37 is: 742,967.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,296.89 : 1,269,994.55 = 538,388.37 : x
  2. Step 2: Convert to fraction form
    920,296.89/1,269,994.55 = 538,388.37/x
  3. Step 3: Cross multiply
    920,296.89x = 1,269,994.55 × 538,388.37
  4. Step 4: Simplify right side
    920,296.89x = 683,750,292,991.44
  5. Step 5: Solve for x
    x = 683,750,292,991.44/920,296.89
  6. Step 6: Final answer
    x = 742,967.08

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1.5x scale

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.