Home / 763,724.94-1,145,734.93-290,373.50

Finding the Fourth Proportional to 763,724.94, 1,145,734.93 and 290,373.50

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Solution

The fourth proportional to 763,724.94, 1,145,734.93 and 290,373.50 is: 435,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,724.94 : 1,145,734.93 = 290,373.50 : x
  2. Step 2: Convert to fraction form
    763,724.94/1,145,734.93 = 290,373.50/x
  3. Step 3: Cross multiply
    763,724.94x = 1,145,734.93 × 290,373.50
  4. Step 4: Simplify right side
    763,724.94x = 332,691,055,967.68
  5. Step 5: Solve for x
    x = 332,691,055,967.68/763,724.94
  6. Step 6: Final answer
    x = 435,616.33

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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.