Home / 2,155,447.80-3,236,670.90-1,210,663.80

Finding the Fourth Proportional to 2,155,447.80, 3,236,670.90 and 1,210,663.80

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Solution

The fourth proportional to 2,155,447.80, 3,236,670.90 and 1,210,663.80 is: 1,817,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,447.80 : 3,236,670.90 = 1,210,663.80 : x
  2. Step 2: Convert to fraction form
    2,155,447.80/3,236,670.90 = 1,210,663.80/x
  3. Step 3: Cross multiply
    2,155,447.80x = 3,236,670.90 × 1,210,663.80
  4. Step 4: Simplify right side
    2,155,447.80x = 3,918,520,291,143.42
  5. Step 5: Solve for x
    x = 3,918,520,291,143.42/2,155,447.80
  6. Step 6: Final answer
    x = 1,817,961.12

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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.