Home / 1,214,177.72-1,675,784.63-724,178.68

Finding the Fourth Proportional to 1,214,177.72, 1,675,784.63 and 724,178.68

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Solution

The fourth proportional to 1,214,177.72, 1,675,784.63 and 724,178.68 is: 999,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,177.72 : 1,675,784.63 = 724,178.68 : x
  2. Step 2: Convert to fraction form
    1,214,177.72/1,675,784.63 = 724,178.68/x
  3. Step 3: Cross multiply
    1,214,177.72x = 1,675,784.63 × 724,178.68
  4. Step 4: Simplify right side
    1,214,177.72x = 1,213,567,498,938.67
  5. Step 5: Solve for x
    x = 1,213,567,498,938.67/1,214,177.72
  6. Step 6: Final answer
    x = 999,497.42

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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.