Home / 1,272,218.70-1,908,328.05-1,210,010.70

Finding the Fourth Proportional to 1,272,218.70, 1,908,328.05 and 1,210,010.70

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Solution

The fourth proportional to 1,272,218.70, 1,908,328.05 and 1,210,010.70 is: 1,815,016.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,218.70 : 1,908,328.05 = 1,210,010.70 : x
  2. Step 2: Convert to fraction form
    1,272,218.70/1,908,328.05 = 1,210,010.70/x
  3. Step 3: Cross multiply
    1,272,218.70x = 1,908,328.05 × 1,210,010.70
  4. Step 4: Simplify right side
    1,272,218.70x = 2,309,097,359,610.13
  5. Step 5: Solve for x
    x = 2,309,097,359,610.13/1,272,218.70
  6. Step 6: Final answer
    x = 1,815,016.05

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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.