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Finding the Fourth Proportional to 1,653,372, 2,480,214.74 and 642,571.89

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Solution

The fourth proportional to 1,653,372, 2,480,214.74 and 642,571.89 is: 963,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653,372 : 2,480,214.74 = 642,571.89 : x
  2. Step 2: Convert to fraction form
    1,653,372/2,480,214.74 = 642,571.89/x
  3. Step 3: Cross multiply
    1,653,372x = 2,480,214.74 × 642,571.89
  4. Step 4: Simplify right side
    1,653,372x = 1,593,716,260,573.99
  5. Step 5: Solve for x
    x = 1,593,716,260,573.99/1,653,372
  6. Step 6: Final answer
    x = 963,918.74

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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.