Home / 1,314,940.80-1,814,669.76-771,000.96

Finding the Fourth Proportional to 1,314,940.80, 1,814,669.76 and 771,000.96

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Solution

The fourth proportional to 1,314,940.80, 1,814,669.76 and 771,000.96 is: 1,064,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,940.80 : 1,814,669.76 = 771,000.96 : x
  2. Step 2: Convert to fraction form
    1,314,940.80/1,814,669.76 = 771,000.96/x
  3. Step 3: Cross multiply
    1,314,940.80x = 1,814,669.76 × 771,000.96
  4. Step 4: Simplify right side
    1,314,940.80x = 1,399,112,127,042.97
  5. Step 5: Solve for x
    x = 1,399,112,127,042.97/1,314,940.80
  6. Step 6: Final answer
    x = 1,064,011.50

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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.