Home / 1,421,457.72-1,962,164.70-962,347.80

Finding the Fourth Proportional to 1,421,457.72, 1,962,164.70 and 962,347.80

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Solution

The fourth proportional to 1,421,457.72, 1,962,164.70 and 962,347.80 is: 1,328,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,457.72 : 1,962,164.70 = 962,347.80 : x
  2. Step 2: Convert to fraction form
    1,421,457.72/1,962,164.70 = 962,347.80/x
  3. Step 3: Cross multiply
    1,421,457.72x = 1,962,164.70 × 962,347.80
  4. Step 4: Simplify right side
    1,421,457.72x = 1,888,284,882,282.66
  5. Step 5: Solve for x
    x = 1,888,284,882,282.66/1,421,457.72
  6. Step 6: Final answer
    x = 1,328,414.38

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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.