Home / 768,724.36-1,152,086.36-312,784.24

Finding the Fourth Proportional to 768,724.36, 1,152,086.36 and 312,784.24

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Solution

The fourth proportional to 768,724.36, 1,152,086.36 and 312,784.24 is: 468,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,724.36 : 1,152,086.36 = 312,784.24 : x
  2. Step 2: Convert to fraction form
    768,724.36/1,152,086.36 = 312,784.24/x
  3. Step 3: Cross multiply
    768,724.36x = 1,152,086.36 × 312,784.24
  4. Step 4: Simplify right side
    768,724.36x = 360,354,456,526.97
  5. Step 5: Solve for x
    x = 360,354,456,526.97/768,724.36
  6. Step 6: Final answer
    x = 468,769.40

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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.