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Finding the Fourth Proportional to 650,986.30, 912,002.90 and 650,986.30

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Solution

The fourth proportional to 650,986.30, 912,002.90 and 650,986.30 is: 912,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,986.30 : 912,002.90 = 650,986.30 : x
  2. Step 2: Convert to fraction form
    650,986.30/912,002.90 = 650,986.30/x
  3. Step 3: Cross multiply
    650,986.30x = 912,002.90 × 650,986.30
  4. Step 4: Simplify right side
    650,986.30x = 593,701,393,460.27
  5. Step 5: Solve for x
    x = 593,701,393,460.27/650,986.30
  6. Step 6: Final answer
    x = 912,002.90

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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.