Home / 1,205,235.52-1,662,813.05-688,618.73

Finding the Fourth Proportional to 1,205,235.52, 1,662,813.05 and 688,618.73

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Solution

The fourth proportional to 1,205,235.52, 1,662,813.05 and 688,618.73 is: 950,058.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,235.52 : 1,662,813.05 = 688,618.73 : x
  2. Step 2: Convert to fraction form
    1,205,235.52/1,662,813.05 = 688,618.73/x
  3. Step 3: Cross multiply
    1,205,235.52x = 1,662,813.05 × 688,618.73
  4. Step 4: Simplify right side
    1,205,235.52x = 1,145,044,216,597.01
  5. Step 5: Solve for x
    x = 1,145,044,216,597.01/1,205,235.52
  6. Step 6: Final answer
    x = 950,058.47

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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.