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Finding the Fourth Proportional to 869,068.30, 1,303,602.45 and 570,469.90

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Solution

The fourth proportional to 869,068.30, 1,303,602.45 and 570,469.90 is: 855,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,068.30 : 1,303,602.45 = 570,469.90 : x
  2. Step 2: Convert to fraction form
    869,068.30/1,303,602.45 = 570,469.90/x
  3. Step 3: Cross multiply
    869,068.30x = 1,303,602.45 × 570,469.90
  4. Step 4: Simplify right side
    869,068.30x = 743,665,959,291.26
  5. Step 5: Solve for x
    x = 743,665,959,291.26/869,068.30
  6. Step 6: Final answer
    x = 855,704.85

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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.