Home / 705,412.27-973,476.06-383,128.66

Finding the Fourth Proportional to 705,412.27, 973,476.06 and 383,128.66

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Solution

The fourth proportional to 705,412.27, 973,476.06 and 383,128.66 is: 528,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,412.27 : 973,476.06 = 383,128.66 : x
  2. Step 2: Convert to fraction form
    705,412.27/973,476.06 = 383,128.66/x
  3. Step 3: Cross multiply
    705,412.27x = 973,476.06 × 383,128.66
  4. Step 4: Simplify right side
    705,412.27x = 372,966,578,409.88
  5. Step 5: Solve for x
    x = 372,966,578,409.88/705,412.27
  6. Step 6: Final answer
    x = 528,721.42

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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.