Home / 648,036.07-972,218.14-198,779.81

Finding the Fourth Proportional to 648,036.07, 972,218.14 and 198,779.81

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Solution

The fourth proportional to 648,036.07, 972,218.14 and 198,779.81 is: 298,220.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,036.07 : 972,218.14 = 198,779.81 : x
  2. Step 2: Convert to fraction form
    648,036.07/972,218.14 = 198,779.81/x
  3. Step 3: Cross multiply
    648,036.07x = 972,218.14 × 198,779.81
  4. Step 4: Simplify right side
    648,036.07x = 193,257,331,789.71
  5. Step 5: Solve for x
    x = 193,257,331,789.71/648,036.07
  6. Step 6: Final answer
    x = 298,220.02

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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.