Home / 1,148,417.10-1,584,782.51-639,108.54

Finding the Fourth Proportional to 1,148,417.10, 1,584,782.51 and 639,108.54

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Solution

The fourth proportional to 1,148,417.10, 1,584,782.51 and 639,108.54 is: 881,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,417.10 : 1,584,782.51 = 639,108.54 : x
  2. Step 2: Convert to fraction form
    1,148,417.10/1,584,782.51 = 639,108.54/x
  3. Step 3: Cross multiply
    1,148,417.10x = 1,584,782.51 × 639,108.54
  4. Step 4: Simplify right side
    1,148,417.10x = 1,012,848,032,988.09
  5. Step 5: Solve for x
    x = 1,012,848,032,988.09/1,148,417.10
  6. Step 6: Final answer
    x = 881,951.37

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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.