Home / 1,245,418.49-1,868,129.55-346,862.81

Finding the Fourth Proportional to 1,245,418.49, 1,868,129.55 and 346,862.81

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Solution

The fourth proportional to 1,245,418.49, 1,868,129.55 and 346,862.81 is: 520,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,418.49 : 1,868,129.55 = 346,862.81 : x
  2. Step 2: Convert to fraction form
    1,245,418.49/1,868,129.55 = 346,862.81/x
  3. Step 3: Cross multiply
    1,245,418.49x = 1,868,129.55 × 346,862.81
  4. Step 4: Simplify right side
    1,245,418.49x = 647,984,665,157.04
  5. Step 5: Solve for x
    x = 647,984,665,157.04/1,245,418.49
  6. Step 6: Final answer
    x = 520,294.72

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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.