Home / 1,711,139.80-2,566,709.70-1,431,203.80

Finding the Fourth Proportional to 1,711,139.80, 2,566,709.70 and 1,431,203.80

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Solution

The fourth proportional to 1,711,139.80, 2,566,709.70 and 1,431,203.80 is: 2,146,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711,139.80 : 2,566,709.70 = 1,431,203.80 : x
  2. Step 2: Convert to fraction form
    1,711,139.80/2,566,709.70 = 1,431,203.80/x
  3. Step 3: Cross multiply
    1,711,139.80x = 2,566,709.70 × 1,431,203.80
  4. Step 4: Simplify right side
    1,711,139.80x = 3,673,484,676,136.86
  5. Step 5: Solve for x
    x = 3,673,484,676,136.86/1,711,139.80
  6. Step 6: Final answer
    x = 2,146,805.70

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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.