Home / 811,828.31-1,120,295.50-449,267.45

Finding the Fourth Proportional to 811,828.31, 1,120,295.50 and 449,267.45

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Solution

The fourth proportional to 811,828.31, 1,120,295.50 and 449,267.45 is: 619,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,828.31 : 1,120,295.50 = 449,267.45 : x
  2. Step 2: Convert to fraction form
    811,828.31/1,120,295.50 = 449,267.45/x
  3. Step 3: Cross multiply
    811,828.31x = 1,120,295.50 × 449,267.45
  4. Step 4: Simplify right side
    811,828.31x = 503,312,295,806.83
  5. Step 5: Solve for x
    x = 503,312,295,806.83/811,828.31
  6. Step 6: Final answer
    x = 619,973.82

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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.