Home / 725,893.57-1,001,706.91-399,203.76

Finding the Fourth Proportional to 725,893.57, 1,001,706.91 and 399,203.76

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Solution

The fourth proportional to 725,893.57, 1,001,706.91 and 399,203.76 is: 550,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,893.57 : 1,001,706.91 = 399,203.76 : x
  2. Step 2: Convert to fraction form
    725,893.57/1,001,706.91 = 399,203.76/x
  3. Step 3: Cross multiply
    725,893.57x = 1,001,706.91 × 399,203.76
  4. Step 4: Simplify right side
    725,893.57x = 399,885,164,889.98
  5. Step 5: Solve for x
    x = 399,885,164,889.98/725,893.57
  6. Step 6: Final answer
    x = 550,886.77

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1.5x scale

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.