Home / 1,292,860.38-1,937,942.93-723,406.55

Finding the Fourth Proportional to 1,292,860.38, 1,937,942.93 and 723,406.55

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Solution

The fourth proportional to 1,292,860.38, 1,937,942.93 and 723,406.55 is: 1,084,355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,860.38 : 1,937,942.93 = 723,406.55 : x
  2. Step 2: Convert to fraction form
    1,292,860.38/1,937,942.93 = 723,406.55/x
  3. Step 3: Cross multiply
    1,292,860.38x = 1,937,942.93 × 723,406.55
  4. Step 4: Simplify right side
    1,292,860.38x = 1,401,920,615,741.57
  5. Step 5: Solve for x
    x = 1,401,920,615,741.57/1,292,860.38
  6. Step 6: Final answer
    x = 1,084,355.77

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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.