Home / 1,129,677.72-1,558,898.64-639,570.96

Finding the Fourth Proportional to 1,129,677.72, 1,558,898.64 and 639,570.96

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Solution

The fourth proportional to 1,129,677.72, 1,558,898.64 and 639,570.96 is: 882,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,677.72 : 1,558,898.64 = 639,570.96 : x
  2. Step 2: Convert to fraction form
    1,129,677.72/1,558,898.64 = 639,570.96/x
  3. Step 3: Cross multiply
    1,129,677.72x = 1,558,898.64 × 639,570.96
  4. Step 4: Simplify right side
    1,129,677.72x = 997,026,299,727.49
  5. Step 5: Solve for x
    x = 997,026,299,727.49/1,129,677.72
  6. Step 6: Final answer
    x = 882,575.87

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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.