Home / 1,292,034.40-1,782,989.70-719,074.48

Finding the Fourth Proportional to 1,292,034.40, 1,782,989.70 and 719,074.48

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Solution

The fourth proportional to 1,292,034.40, 1,782,989.70 and 719,074.48 is: 992,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,034.40 : 1,782,989.70 = 719,074.48 : x
  2. Step 2: Convert to fraction form
    1,292,034.40/1,782,989.70 = 719,074.48/x
  3. Step 3: Cross multiply
    1,292,034.40x = 1,782,989.70 × 719,074.48
  4. Step 4: Simplify right side
    1,292,034.40x = 1,282,102,391,372.86
  5. Step 5: Solve for x
    x = 1,282,102,391,372.86/1,292,034.40
  6. Step 6: Final answer
    x = 992,312.89

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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.