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Finding the Fourth Proportional to 562,587.47, 776,375.54 and 320,882.28

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Solution

The fourth proportional to 562,587.47, 776,375.54 and 320,882.28 is: 442,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,587.47 : 776,375.54 = 320,882.28 : x
  2. Step 2: Convert to fraction form
    562,587.47/776,375.54 = 320,882.28/x
  3. Step 3: Cross multiply
    562,587.47x = 776,375.54 × 320,882.28
  4. Step 4: Simplify right side
    562,587.47x = 249,125,151,903.88
  5. Step 5: Solve for x
    x = 249,125,151,903.88/562,587.47
  6. Step 6: Final answer
    x = 442,820.30

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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.