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Finding the Fourth Proportional to 562,743.96, 776,660.60 and 320,971.08

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Solution

The fourth proportional to 562,743.96, 776,660.60 and 320,971.08 is: 442,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,743.96 : 776,660.60 = 320,971.08 : x
  2. Step 2: Convert to fraction form
    562,743.96/776,660.60 = 320,971.08/x
  3. Step 3: Cross multiply
    562,743.96x = 776,660.60 × 320,971.08
  4. Step 4: Simplify right side
    562,743.96x = 249,285,591,575.45
  5. Step 5: Solve for x
    x = 249,285,591,575.45/562,743.96
  6. Step 6: Final answer
    x = 442,982.26

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1.5x scale

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.