Home / 1,128,642.48-1,557,527.40-619,372.80

Finding the Fourth Proportional to 1,128,642.48, 1,557,527.40 and 619,372.80

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Solution

The fourth proportional to 1,128,642.48, 1,557,527.40 and 619,372.80 is: 854,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,642.48 : 1,557,527.40 = 619,372.80 : x
  2. Step 2: Convert to fraction form
    1,128,642.48/1,557,527.40 = 619,372.80/x
  3. Step 3: Cross multiply
    1,128,642.48x = 1,557,527.40 × 619,372.80
  4. Step 4: Simplify right side
    1,128,642.48x = 964,690,106,814.72
  5. Step 5: Solve for x
    x = 964,690,106,814.72/1,128,642.48
  6. Step 6: Final answer
    x = 854,734.89

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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.