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Finding the Fourth Proportional to 648,970.36, 895,825.41 and 488,292.49

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Solution

The fourth proportional to 648,970.36, 895,825.41 and 488,292.49 is: 674,028.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,970.36 : 895,825.41 = 488,292.49 : x
  2. Step 2: Convert to fraction form
    648,970.36/895,825.41 = 488,292.49/x
  3. Step 3: Cross multiply
    648,970.36x = 895,825.41 × 488,292.49
  4. Step 4: Simplify right side
    648,970.36x = 437,424,820,054.17
  5. Step 5: Solve for x
    x = 437,424,820,054.17/648,970.36
  6. Step 6: Final answer
    x = 674,028.96

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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.