Home / 3,260,135.40-4,890,178.80-985,655.40

Finding the Fourth Proportional to 3,260,135.40, 4,890,178.80 and 985,655.40

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Solution

The fourth proportional to 3,260,135.40, 4,890,178.80 and 985,655.40 is: 1,478,475.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260,135.40 : 4,890,178.80 = 985,655.40 : x
  2. Step 2: Convert to fraction form
    3,260,135.40/4,890,178.80 = 985,655.40/x
  3. Step 3: Cross multiply
    3,260,135.40x = 4,890,178.80 × 985,655.40
  4. Step 4: Simplify right side
    3,260,135.40x = 4,820,031,141,185.52
  5. Step 5: Solve for x
    x = 4,820,031,141,185.52/3,260,135.40
  6. Step 6: Final answer
    x = 1,478,475.75

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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.