Home / 1,211,597.07-1,671,928.81-667,702.50

Finding the Fourth Proportional to 1,211,597.07, 1,671,928.81 and 667,702.50

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Solution

The fourth proportional to 1,211,597.07, 1,671,928.81 and 667,702.50 is: 921,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,597.07 : 1,671,928.81 = 667,702.50 : x
  2. Step 2: Convert to fraction form
    1,211,597.07/1,671,928.81 = 667,702.50/x
  3. Step 3: Cross multiply
    1,211,597.07x = 1,671,928.81 × 667,702.50
  4. Step 4: Simplify right side
    1,211,597.07x = 1,116,351,046,259.03
  5. Step 5: Solve for x
    x = 1,116,351,046,259.03/1,211,597.07
  6. Step 6: Final answer
    x = 921,388.04

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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.