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Finding the Fourth Proportional to 556,272.90, 829,732.95 and 505,189.31

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Solution

The fourth proportional to 556,272.90, 829,732.95 and 505,189.31 is: 753,537.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,272.90 : 829,732.95 = 505,189.31 : x
  2. Step 2: Convert to fraction form
    556,272.90/829,732.95 = 505,189.31/x
  3. Step 3: Cross multiply
    556,272.90x = 829,732.95 × 505,189.31
  4. Step 4: Simplify right side
    556,272.90x = 419,172,212,346.10
  5. Step 5: Solve for x
    x = 419,172,212,346.10/556,272.90
  6. Step 6: Final answer
    x = 753,537.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.