Home / 3,139,718.40-4,709,577.60-775,814.40

Finding the Fourth Proportional to 3,139,718.40, 4,709,577.60 and 775,814.40

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Solution

The fourth proportional to 3,139,718.40, 4,709,577.60 and 775,814.40 is: 1,163,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,718.40 : 4,709,577.60 = 775,814.40 : x
  2. Step 2: Convert to fraction form
    3,139,718.40/4,709,577.60 = 775,814.40/x
  3. Step 3: Cross multiply
    3,139,718.40x = 4,709,577.60 × 775,814.40
  4. Step 4: Simplify right side
    3,139,718.40x = 3,653,758,119,997.44
  5. Step 5: Solve for x
    x = 3,653,758,119,997.44/3,139,718.40
  6. Step 6: Final answer
    x = 1,163,721.60

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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.