Home / 857,253.89-1,286,130.52-383,828.53

Finding the Fourth Proportional to 857,253.89, 1,286,130.52 and 383,828.53

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Solution

The fourth proportional to 857,253.89, 1,286,130.52 and 383,828.53 is: 575,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,253.89 : 1,286,130.52 = 383,828.53 : x
  2. Step 2: Convert to fraction form
    857,253.89/1,286,130.52 = 383,828.53/x
  3. Step 3: Cross multiply
    857,253.89x = 1,286,130.52 × 383,828.53
  4. Step 4: Simplify right side
    857,253.89x = 493,653,586,879.74
  5. Step 5: Solve for x
    x = 493,653,586,879.74/857,253.89
  6. Step 6: Final answer
    x = 575,854.59

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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.