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Finding the Fourth Proportional to 562,881.89, 776,761.85 and 321,160.07

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Solution

The fourth proportional to 562,881.89, 776,761.85 and 321,160.07 is: 443,192.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,881.89 : 776,761.85 = 321,160.07 : x
  2. Step 2: Convert to fraction form
    562,881.89/776,761.85 = 321,160.07/x
  3. Step 3: Cross multiply
    562,881.89x = 776,761.85 × 321,160.07
  4. Step 4: Simplify right side
    562,881.89x = 249,464,884,629.72
  5. Step 5: Solve for x
    x = 249,464,884,629.72/562,881.89
  6. Step 6: Final answer
    x = 443,192.24

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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.