Home / 689,276.61-1,032,969.04-436,103.88

Finding the Fourth Proportional to 689,276.61, 1,032,969.04 and 436,103.88

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Solution

The fourth proportional to 689,276.61, 1,032,969.04 and 436,103.88 is: 653,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,276.61 : 1,032,969.04 = 436,103.88 : x
  2. Step 2: Convert to fraction form
    689,276.61/1,032,969.04 = 436,103.88/x
  3. Step 3: Cross multiply
    689,276.61x = 1,032,969.04 × 436,103.88
  4. Step 4: Simplify right side
    689,276.61x = 450,481,806,263.88
  5. Step 5: Solve for x
    x = 450,481,806,263.88/689,276.61
  6. Step 6: Final answer
    x = 653,557.37

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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.