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Finding the Fourth Proportional to 638,352.03, 880,925.58 and 351,876.90

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Solution

The fourth proportional to 638,352.03, 880,925.58 and 351,876.90 is: 485,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,352.03 : 880,925.58 = 351,876.90 : x
  2. Step 2: Convert to fraction form
    638,352.03/880,925.58 = 351,876.90/x
  3. Step 3: Cross multiply
    638,352.03x = 880,925.58 × 351,876.90
  4. Step 4: Simplify right side
    638,352.03x = 309,977,362,221.10
  5. Step 5: Solve for x
    x = 309,977,362,221.10/638,352.03
  6. Step 6: Final answer
    x = 485,590.00

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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.