Home / 1,318,421.25-1,987,513.67-1,230,535.93

Finding the Fourth Proportional to 1,318,421.25, 1,987,513.67 and 1,230,535.93

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Solution

The fourth proportional to 1,318,421.25, 1,987,513.67 and 1,230,535.93 is: 1,855,026.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,421.25 : 1,987,513.67 = 1,230,535.93 : x
  2. Step 2: Convert to fraction form
    1,318,421.25/1,987,513.67 = 1,230,535.93/x
  3. Step 3: Cross multiply
    1,318,421.25x = 1,987,513.67 × 1,230,535.93
  4. Step 4: Simplify right side
    1,318,421.25x = 2,445,706,982,301.16
  5. Step 5: Solve for x
    x = 2,445,706,982,301.16/1,318,421.25
  6. Step 6: Final answer
    x = 1,855,026.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.