Home / 1,103,573.09-1,654,682.25-428,866.53

Finding the Fourth Proportional to 1,103,573.09, 1,654,682.25 and 428,866.53

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Solution

The fourth proportional to 1,103,573.09, 1,654,682.25 and 428,866.53 is: 643,036.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,573.09 : 1,654,682.25 = 428,866.53 : x
  2. Step 2: Convert to fraction form
    1,103,573.09/1,654,682.25 = 428,866.53/x
  3. Step 3: Cross multiply
    1,103,573.09x = 1,654,682.25 × 428,866.53
  4. Step 4: Simplify right side
    1,103,573.09x = 709,637,834,810.09
  5. Step 5: Solve for x
    x = 709,637,834,810.09/1,103,573.09
  6. Step 6: Final answer
    x = 643,036.56

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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.