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Finding the Fourth Proportional to 455,038.56, 627,970.32 and 253,873.44

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Solution

The fourth proportional to 455,038.56, 627,970.32 and 253,873.44 is: 350,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,038.56 : 627,970.32 = 253,873.44 : x
  2. Step 2: Convert to fraction form
    455,038.56/627,970.32 = 253,873.44/x
  3. Step 3: Cross multiply
    455,038.56x = 627,970.32 × 253,873.44
  4. Step 4: Simplify right side
    455,038.56x = 159,424,985,356.30
  5. Step 5: Solve for x
    x = 159,424,985,356.30/455,038.56
  6. Step 6: Final answer
    x = 350,354.89

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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.