Home / 939,492.21-1,296,835.47-557,518.98

Finding the Fourth Proportional to 939,492.21, 1,296,835.47 and 557,518.98

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Solution

The fourth proportional to 939,492.21, 1,296,835.47 and 557,518.98 is: 769,575.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,492.21 : 1,296,835.47 = 557,518.98 : x
  2. Step 2: Convert to fraction form
    939,492.21/1,296,835.47 = 557,518.98/x
  3. Step 3: Cross multiply
    939,492.21x = 1,296,835.47 × 557,518.98
  4. Step 4: Simplify right side
    939,492.21x = 723,010,388,462.22
  5. Step 5: Solve for x
    x = 723,010,388,462.22/939,492.21
  6. Step 6: Final answer
    x = 769,575.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.