Home / 729,923.78-1,007,222.85-407,626.96

Finding the Fourth Proportional to 729,923.78, 1,007,222.85 and 407,626.96

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Solution

The fourth proportional to 729,923.78, 1,007,222.85 and 407,626.96 is: 562,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,923.78 : 1,007,222.85 = 407,626.96 : x
  2. Step 2: Convert to fraction form
    729,923.78/1,007,222.85 = 407,626.96/x
  3. Step 3: Cross multiply
    729,923.78x = 1,007,222.85 × 407,626.96
  4. Step 4: Simplify right side
    729,923.78x = 410,571,184,925.71
  5. Step 5: Solve for x
    x = 410,571,184,925.71/729,923.78
  6. Step 6: Final answer
    x = 562,485.01

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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.