Home / 744,479.64-1,027,564.38-422,378.28

Finding the Fourth Proportional to 744,479.64, 1,027,564.38 and 422,378.28

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Solution

The fourth proportional to 744,479.64, 1,027,564.38 and 422,378.28 is: 582,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,479.64 : 1,027,564.38 = 422,378.28 : x
  2. Step 2: Convert to fraction form
    744,479.64/1,027,564.38 = 422,378.28/x
  3. Step 3: Cross multiply
    744,479.64x = 1,027,564.38 × 422,378.28
  4. Step 4: Simplify right side
    744,479.64x = 434,020,875,413.67
  5. Step 5: Solve for x
    x = 434,020,875,413.67/744,479.64
  6. Step 6: Final answer
    x = 582,985.55

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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.