Home / 1,434,842.58-1,980,172.65-790,262.63

Finding the Fourth Proportional to 1,434,842.58, 1,980,172.65 and 790,262.63

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Solution

The fourth proportional to 1,434,842.58, 1,980,172.65 and 790,262.63 is: 1,090,611.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,842.58 : 1,980,172.65 = 790,262.63 : x
  2. Step 2: Convert to fraction form
    1,434,842.58/1,980,172.65 = 790,262.63/x
  3. Step 3: Cross multiply
    1,434,842.58x = 1,980,172.65 × 790,262.63
  4. Step 4: Simplify right side
    1,434,842.58x = 1,564,856,436,342.21
  5. Step 5: Solve for x
    x = 1,564,856,436,342.21/1,434,842.58
  6. Step 6: Final answer
    x = 1,090,611.93

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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.