Home / 1,008,907.44-1,391,504.50-646,364.76

Finding the Fourth Proportional to 1,008,907.44, 1,391,504.50 and 646,364.76

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Solution

The fourth proportional to 1,008,907.44, 1,391,504.50 and 646,364.76 is: 891,478.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,907.44 : 1,391,504.50 = 646,364.76 : x
  2. Step 2: Convert to fraction form
    1,008,907.44/1,391,504.50 = 646,364.76/x
  3. Step 3: Cross multiply
    1,008,907.44x = 1,391,504.50 × 646,364.76
  4. Step 4: Simplify right side
    1,008,907.44x = 899,419,472,181.42
  5. Step 5: Solve for x
    x = 899,419,472,181.42/1,008,907.44
  6. Step 6: Final answer
    x = 891,478.68

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Double scale
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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.