Home / 805,322.40-1,208,129.40-404,955.60

Finding the Fourth Proportional to 805,322.40, 1,208,129.40 and 404,955.60

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Solution

The fourth proportional to 805,322.40, 1,208,129.40 and 404,955.60 is: 607,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,322.40 : 1,208,129.40 = 404,955.60 : x
  2. Step 2: Convert to fraction form
    805,322.40/1,208,129.40 = 404,955.60/x
  3. Step 3: Cross multiply
    805,322.40x = 1,208,129.40 × 404,955.60
  4. Step 4: Simplify right side
    805,322.40x = 489,238,766,054.64
  5. Step 5: Solve for x
    x = 489,238,766,054.64/805,322.40
  6. Step 6: Final answer
    x = 607,506.72

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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.