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Finding the Fourth Proportional to 1,296,293.60, 1,810,612 and 1,296,293.60

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Solution

The fourth proportional to 1,296,293.60, 1,810,612 and 1,296,293.60 is: 1,810,612

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,293.60 : 1,810,612 = 1,296,293.60 : x
  2. Step 2: Convert to fraction form
    1,296,293.60/1,810,612 = 1,296,293.60/x
  3. Step 3: Cross multiply
    1,296,293.60x = 1,810,612 × 1,296,293.60
  4. Step 4: Simplify right side
    1,296,293.60x = 2,347,084,747,683.20
  5. Step 5: Solve for x
    x = 2,347,084,747,683.20/1,296,293.60
  6. Step 6: Final answer
    x = 1,810,612

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.