Home / 1,421,459.80-2,131,412.10-579,059.80

Finding the Fourth Proportional to 1,421,459.80, 2,131,412.10 and 579,059.80

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Solution

The fourth proportional to 1,421,459.80, 2,131,412.10 and 579,059.80 is: 868,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,459.80 : 2,131,412.10 = 579,059.80 : x
  2. Step 2: Convert to fraction form
    1,421,459.80/2,131,412.10 = 579,059.80/x
  3. Step 3: Cross multiply
    1,421,459.80x = 2,131,412.10 × 579,059.80
  4. Step 4: Simplify right side
    1,421,459.80x = 1,234,215,064,343.58
  5. Step 5: Solve for x
    x = 1,234,215,064,343.58/1,421,459.80
  6. Step 6: Final answer
    x = 868,272.93

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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.