Home / 879,352.52-1,213,437.66-516,790.04

Finding the Fourth Proportional to 879,352.52, 1,213,437.66 and 516,790.04

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Solution

The fourth proportional to 879,352.52, 1,213,437.66 and 516,790.04 is: 713,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,352.52 : 1,213,437.66 = 516,790.04 : x
  2. Step 2: Convert to fraction form
    879,352.52/1,213,437.66 = 516,790.04/x
  3. Step 3: Cross multiply
    879,352.52x = 1,213,437.66 × 516,790.04
  4. Step 4: Simplify right side
    879,352.52x = 627,092,496,848.91
  5. Step 5: Solve for x
    x = 627,092,496,848.91/879,352.52
  6. Step 6: Final answer
    x = 713,129.81

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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.