Home / 1,189,403.06-1,784,290.48-390,502.89

Finding the Fourth Proportional to 1,189,403.06, 1,784,290.48 and 390,502.89

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Solution

The fourth proportional to 1,189,403.06, 1,784,290.48 and 390,502.89 is: 585,815.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,403.06 : 1,784,290.48 = 390,502.89 : x
  2. Step 2: Convert to fraction form
    1,189,403.06/1,784,290.48 = 390,502.89/x
  3. Step 3: Cross multiply
    1,189,403.06x = 1,784,290.48 × 390,502.89
  4. Step 4: Simplify right side
    1,189,403.06x = 696,770,588,063.23
  5. Step 5: Solve for x
    x = 696,770,588,063.23/1,189,403.06
  6. Step 6: Final answer
    x = 585,815.37

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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.