Home / 711,827.76-982,322.32-389,537.87

Finding the Fourth Proportional to 711,827.76, 982,322.32 and 389,537.87

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Solution

The fourth proportional to 711,827.76, 982,322.32 and 389,537.87 is: 537,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,827.76 : 982,322.32 = 389,537.87 : x
  2. Step 2: Convert to fraction form
    711,827.76/982,322.32 = 389,537.87/x
  3. Step 3: Cross multiply
    711,827.76x = 982,322.32 × 389,537.87
  4. Step 4: Simplify right side
    711,827.76x = 382,651,744,186.26
  5. Step 5: Solve for x
    x = 382,651,744,186.26/711,827.76
  6. Step 6: Final answer
    x = 537,562.27

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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.