Home / 939,290.73-1,296,221.68-509,570.81

Finding the Fourth Proportional to 939,290.73, 1,296,221.68 and 509,570.81

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Solution

The fourth proportional to 939,290.73, 1,296,221.68 and 509,570.81 is: 703,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,290.73 : 1,296,221.68 = 509,570.81 : x
  2. Step 2: Convert to fraction form
    939,290.73/1,296,221.68 = 509,570.81/x
  3. Step 3: Cross multiply
    939,290.73x = 1,296,221.68 × 509,570.81
  4. Step 4: Simplify right side
    939,290.73x = 660,516,731,417.16
  5. Step 5: Solve for x
    x = 660,516,731,417.16/939,290.73
  6. Step 6: Final answer
    x = 703,207.97

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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.