Home / 725,820.67-1,001,658.28-399,158.51

Finding the Fourth Proportional to 725,820.67, 1,001,658.28 and 399,158.51

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Solution

The fourth proportional to 725,820.67, 1,001,658.28 and 399,158.51 is: 550,852.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,820.67 : 1,001,658.28 = 399,158.51 : x
  2. Step 2: Convert to fraction form
    725,820.67/1,001,658.28 = 399,158.51/x
  3. Step 3: Cross multiply
    725,820.67x = 1,001,658.28 × 399,158.51
  4. Step 4: Simplify right side
    725,820.67x = 399,820,426,950.53
  5. Step 5: Solve for x
    x = 399,820,426,950.53/725,820.67
  6. Step 6: Final answer
    x = 550,852.91

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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.