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Finding the Fourth Proportional to 929,689.60, 1,394,534.40 and 929,689.60

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Solution

The fourth proportional to 929,689.60, 1,394,534.40 and 929,689.60 is: 1,394,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,689.60 : 1,394,534.40 = 929,689.60 : x
  2. Step 2: Convert to fraction form
    929,689.60/1,394,534.40 = 929,689.60/x
  3. Step 3: Cross multiply
    929,689.60x = 1,394,534.40 × 929,689.60
  4. Step 4: Simplify right side
    929,689.60x = 1,296,484,128,522.24
  5. Step 5: Solve for x
    x = 1,296,484,128,522.24/929,689.60
  6. Step 6: Final answer
    x = 1,394,534.40

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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.