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Finding the Fourth Proportional to 3,230,664.16, 4,845,820.80 and 986,627.20

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Solution

The fourth proportional to 3,230,664.16, 4,845,820.80 and 986,627.20 is: 1,479,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230,664.16 : 4,845,820.80 = 986,627.20 : x
  2. Step 2: Convert to fraction form
    3,230,664.16/4,845,820.80 = 986,627.20/x
  3. Step 3: Cross multiply
    3,230,664.16x = 4,845,820.80 × 986,627.20
  4. Step 4: Simplify right side
    3,230,664.16x = 4,781,018,607,605.76
  5. Step 5: Solve for x
    x = 4,781,018,607,605.76/3,230,664.16
  6. Step 6: Final answer
    x = 1,479,887.22

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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.