Home / 1,292,004.64-1,782,942.48-719,039.76

Finding the Fourth Proportional to 1,292,004.64, 1,782,942.48 and 719,039.76

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Solution

The fourth proportional to 1,292,004.64, 1,782,942.48 and 719,039.76 is: 992,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,004.64 : 1,782,942.48 = 719,039.76 : x
  2. Step 2: Convert to fraction form
    1,292,004.64/1,782,942.48 = 719,039.76/x
  3. Step 3: Cross multiply
    1,292,004.64x = 1,782,942.48 × 719,039.76
  4. Step 4: Simplify right side
    1,292,004.64x = 1,282,006,532,913.00
  5. Step 5: Solve for x
    x = 1,282,006,532,913.00/1,292,004.64
  6. Step 6: Final answer
    x = 992,261.55

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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.