Home / 1,643,126.50-2,465,000.79-756,662.50

Finding the Fourth Proportional to 1,643,126.50, 2,465,000.79 and 756,662.50

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Solution

The fourth proportional to 1,643,126.50, 2,465,000.79 and 756,662.50 is: 1,135,136.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,126.50 : 2,465,000.79 = 756,662.50 : x
  2. Step 2: Convert to fraction form
    1,643,126.50/2,465,000.79 = 756,662.50/x
  3. Step 3: Cross multiply
    1,643,126.50x = 2,465,000.79 × 756,662.50
  4. Step 4: Simplify right side
    1,643,126.50x = 1,865,173,660,263.38
  5. Step 5: Solve for x
    x = 1,865,173,660,263.38/1,643,126.50
  6. Step 6: Final answer
    x = 1,135,136.98

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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.