Home / 1,129,694.49-1,559,005.52-620,407.80

Finding the Fourth Proportional to 1,129,694.49, 1,559,005.52 and 620,407.80

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Solution

The fourth proportional to 1,129,694.49, 1,559,005.52 and 620,407.80 is: 856,177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,694.49 : 1,559,005.52 = 620,407.80 : x
  2. Step 2: Convert to fraction form
    1,129,694.49/1,559,005.52 = 620,407.80/x
  3. Step 3: Cross multiply
    1,129,694.49x = 1,559,005.52 × 620,407.80
  4. Step 4: Simplify right side
    1,129,694.49x = 967,219,181,749.02
  5. Step 5: Solve for x
    x = 967,219,181,749.02/1,129,694.49
  6. Step 6: Final answer
    x = 856,177.66

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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.