Home / 1,347,412.70-2,021,119.05-808,535.90

Finding the Fourth Proportional to 1,347,412.70, 2,021,119.05 and 808,535.90

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Solution

The fourth proportional to 1,347,412.70, 2,021,119.05 and 808,535.90 is: 1,212,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,412.70 : 2,021,119.05 = 808,535.90 : x
  2. Step 2: Convert to fraction form
    1,347,412.70/2,021,119.05 = 808,535.90/x
  3. Step 3: Cross multiply
    1,347,412.70x = 2,021,119.05 × 808,535.90
  4. Step 4: Simplify right side
    1,347,412.70x = 1,634,147,310,098.90
  5. Step 5: Solve for x
    x = 1,634,147,310,098.90/1,347,412.70
  6. Step 6: Final answer
    x = 1,212,803.85

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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.