Home / 486,455.26-671,535.78-282,466.43

Finding the Fourth Proportional to 486,455.26, 671,535.78 and 282,466.43

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Solution

The fourth proportional to 486,455.26, 671,535.78 and 282,466.43 is: 389,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,455.26 : 671,535.78 = 282,466.43 : x
  2. Step 2: Convert to fraction form
    486,455.26/671,535.78 = 282,466.43/x
  3. Step 3: Cross multiply
    486,455.26x = 671,535.78 × 282,466.43
  4. Step 4: Simplify right side
    486,455.26x = 189,686,311,948.07
  5. Step 5: Solve for x
    x = 189,686,311,948.07/486,455.26
  6. Step 6: Final answer
    x = 389,935.78

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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.