Home / 1,385,472.55-1,913,272.55-1,309,992.34

Finding the Fourth Proportional to 1,385,472.55, 1,913,272.55 and 1,309,992.34

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Solution

The fourth proportional to 1,385,472.55, 1,913,272.55 and 1,309,992.34 is: 1,809,037.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,472.55 : 1,913,272.55 = 1,309,992.34 : x
  2. Step 2: Convert to fraction form
    1,385,472.55/1,913,272.55 = 1,309,992.34/x
  3. Step 3: Cross multiply
    1,385,472.55x = 1,913,272.55 × 1,309,992.34
  4. Step 4: Simplify right side
    1,385,472.55x = 2,506,372,384,832.27
  5. Step 5: Solve for x
    x = 2,506,372,384,832.27/1,385,472.55
  6. Step 6: Final answer
    x = 1,809,037.92

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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.