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Finding the Fourth Proportional to 478,886.02, 718,796.51 and 395,495.71

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Solution

The fourth proportional to 478,886.02, 718,796.51 and 395,495.71 is: 593,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,886.02 : 718,796.51 = 395,495.71 : x
  2. Step 2: Convert to fraction form
    478,886.02/718,796.51 = 395,495.71/x
  3. Step 3: Cross multiply
    478,886.02x = 718,796.51 × 395,495.71
  4. Step 4: Simplify right side
    478,886.02x = 284,280,934,090.49
  5. Step 5: Solve for x
    x = 284,280,934,090.49/478,886.02
  6. Step 6: Final answer
    x = 593,629.64

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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.