Home / 1,243,813.53-1,865,730.75-345,325.34

Finding the Fourth Proportional to 1,243,813.53, 1,865,730.75 and 345,325.34

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Solution

The fourth proportional to 1,243,813.53, 1,865,730.75 and 345,325.34 is: 517,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,813.53 : 1,865,730.75 = 345,325.34 : x
  2. Step 2: Convert to fraction form
    1,243,813.53/1,865,730.75 = 345,325.34/x
  3. Step 3: Cross multiply
    1,243,813.53x = 1,865,730.75 × 345,325.34
  4. Step 4: Simplify right side
    1,243,813.53x = 644,284,096,263.55
  5. Step 5: Solve for x
    x = 644,284,096,263.55/1,243,813.53
  6. Step 6: Final answer
    x = 517,990.91

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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.