Home / 1,636,542.36-2,455,148.88-689,914.80

Finding the Fourth Proportional to 1,636,542.36, 2,455,148.88 and 689,914.80

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Solution

The fourth proportional to 1,636,542.36, 2,455,148.88 and 689,914.80 is: 1,035,013.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,542.36 : 2,455,148.88 = 689,914.80 : x
  2. Step 2: Convert to fraction form
    1,636,542.36/2,455,148.88 = 689,914.80/x
  3. Step 3: Cross multiply
    1,636,542.36x = 2,455,148.88 × 689,914.80
  4. Step 4: Simplify right side
    1,636,542.36x = 1,693,843,548,515.42
  5. Step 5: Solve for x
    x = 1,693,843,548,515.42/1,636,542.36
  6. Step 6: Final answer
    x = 1,035,013.57

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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.