Home / 725,688.16-1,088,663.85-298,987.03

Finding the Fourth Proportional to 725,688.16, 1,088,663.85 and 298,987.03

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Solution

The fourth proportional to 725,688.16, 1,088,663.85 and 298,987.03 is: 448,534.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,688.16 : 1,088,663.85 = 298,987.03 : x
  2. Step 2: Convert to fraction form
    725,688.16/1,088,663.85 = 298,987.03/x
  3. Step 3: Cross multiply
    725,688.16x = 1,088,663.85 × 298,987.03
  4. Step 4: Simplify right side
    725,688.16x = 325,496,371,179.87
  5. Step 5: Solve for x
    x = 325,496,371,179.87/725,688.16
  6. Step 6: Final answer
    x = 448,534.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.