Home / 1,310,521.60-1,965,782.40-777,768.40

Finding the Fourth Proportional to 1,310,521.60, 1,965,782.40 and 777,768.40

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Solution

The fourth proportional to 1,310,521.60, 1,965,782.40 and 777,768.40 is: 1,166,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,521.60 : 1,965,782.40 = 777,768.40 : x
  2. Step 2: Convert to fraction form
    1,310,521.60/1,965,782.40 = 777,768.40/x
  3. Step 3: Cross multiply
    1,310,521.60x = 1,965,782.40 × 777,768.40
  4. Step 4: Simplify right side
    1,310,521.60x = 1,528,923,431,996.16
  5. Step 5: Solve for x
    x = 1,528,923,431,996.16/1,310,521.60
  6. Step 6: Final answer
    x = 1,166,652.60

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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.