Home / 1,259,372.32-1,737,922.64-686,412.48

Finding the Fourth Proportional to 1,259,372.32, 1,737,922.64 and 686,412.48

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Solution

The fourth proportional to 1,259,372.32, 1,737,922.64 and 686,412.48 is: 947,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,372.32 : 1,737,922.64 = 686,412.48 : x
  2. Step 2: Convert to fraction form
    1,259,372.32/1,737,922.64 = 686,412.48/x
  3. Step 3: Cross multiply
    1,259,372.32x = 1,737,922.64 × 686,412.48
  4. Step 4: Simplify right side
    1,259,372.32x = 1,192,931,789,370.55
  5. Step 5: Solve for x
    x = 1,192,931,789,370.55/1,259,372.32
  6. Step 6: Final answer
    x = 947,243.14

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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.