Home / 778,724.48-1,074,637.78-434,556.75

Finding the Fourth Proportional to 778,724.48, 1,074,637.78 and 434,556.75

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Solution

The fourth proportional to 778,724.48, 1,074,637.78 and 434,556.75 is: 599,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,724.48 : 1,074,637.78 = 434,556.75 : x
  2. Step 2: Convert to fraction form
    778,724.48/1,074,637.78 = 434,556.75/x
  3. Step 3: Cross multiply
    778,724.48x = 1,074,637.78 × 434,556.75
  4. Step 4: Simplify right side
    778,724.48x = 466,991,100,447.06
  5. Step 5: Solve for x
    x = 466,991,100,447.06/778,724.48
  6. Step 6: Final answer
    x = 599,687.19

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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.