Home / 909,789.48-1,364,665.44-404,213.40

Finding the Fourth Proportional to 909,789.48, 1,364,665.44 and 404,213.40

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Solution

The fourth proportional to 909,789.48, 1,364,665.44 and 404,213.40 is: 606,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,789.48 : 1,364,665.44 = 404,213.40 : x
  2. Step 2: Convert to fraction form
    909,789.48/1,364,665.44 = 404,213.40/x
  3. Step 3: Cross multiply
    909,789.48x = 1,364,665.44 × 404,213.40
  4. Step 4: Simplify right side
    909,789.48x = 551,616,057,364.90
  5. Step 5: Solve for x
    x = 551,616,057,364.90/909,789.48
  6. Step 6: Final answer
    x = 606,311.76

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1.5x scale

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.