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Finding the Fourth Proportional to 648,969.36, 895,824.03 and 488,291.49

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Solution

The fourth proportional to 648,969.36, 895,824.03 and 488,291.49 is: 674,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,969.36 : 895,824.03 = 488,291.49 : x
  2. Step 2: Convert to fraction form
    648,969.36/895,824.03 = 488,291.49/x
  3. Step 3: Cross multiply
    648,969.36x = 895,824.03 × 488,291.49
  4. Step 4: Simplify right side
    648,969.36x = 437,423,250,386.51
  5. Step 5: Solve for x
    x = 437,423,250,386.51/648,969.36
  6. Step 6: Final answer
    x = 674,027.58

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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.