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Finding the Fourth Proportional to 612,086.60, 857,807.02 and 612,086.60

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Solution

The fourth proportional to 612,086.60, 857,807.02 and 612,086.60 is: 857,807.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,086.60 : 857,807.02 = 612,086.60 : x
  2. Step 2: Convert to fraction form
    612,086.60/857,807.02 = 612,086.60/x
  3. Step 3: Cross multiply
    612,086.60x = 857,807.02 × 612,086.60
  4. Step 4: Simplify right side
    612,086.60x = 525,052,182,327.93
  5. Step 5: Solve for x
    x = 525,052,182,327.93/612,086.60
  6. Step 6: Final answer
    x = 857,807.02

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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.