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Finding the Fourth Proportional to 540,400.63, 810,477.69 and 203,476.81

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Solution

The fourth proportional to 540,400.63, 810,477.69 and 203,476.81 is: 305,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,400.63 : 810,477.69 = 203,476.81 : x
  2. Step 2: Convert to fraction form
    540,400.63/810,477.69 = 203,476.81/x
  3. Step 3: Cross multiply
    540,400.63x = 810,477.69 × 203,476.81
  4. Step 4: Simplify right side
    540,400.63x = 164,913,414,937.37
  5. Step 5: Solve for x
    x = 164,913,414,937.37/540,400.63
  6. Step 6: Final answer
    x = 305,168.81

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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.