Home / 711,052.14-981,261.26-388,762.61

Finding the Fourth Proportional to 711,052.14, 981,261.26 and 388,762.61

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Solution

The fourth proportional to 711,052.14, 981,261.26 and 388,762.61 is: 536,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,052.14 : 981,261.26 = 388,762.61 : x
  2. Step 2: Convert to fraction form
    711,052.14/981,261.26 = 388,762.61/x
  3. Step 3: Cross multiply
    711,052.14x = 981,261.26 × 388,762.61
  4. Step 4: Simplify right side
    711,052.14x = 381,477,688,529.49
  5. Step 5: Solve for x
    x = 381,477,688,529.49/711,052.14
  6. Step 6: Final answer
    x = 536,497.49

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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.