Home / 916,427.52-1,375,078.68-442,849.68

Finding the Fourth Proportional to 916,427.52, 1,375,078.68 and 442,849.68

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Solution

The fourth proportional to 916,427.52, 1,375,078.68 and 442,849.68 is: 664,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,427.52 : 1,375,078.68 = 442,849.68 : x
  2. Step 2: Convert to fraction form
    916,427.52/1,375,078.68 = 442,849.68/x
  3. Step 3: Cross multiply
    916,427.52x = 1,375,078.68 × 442,849.68
  4. Step 4: Simplify right side
    916,427.52x = 608,953,153,412.82
  5. Step 5: Solve for x
    x = 608,953,153,412.82/916,427.52
  6. Step 6: Final answer
    x = 664,485.89

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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.