Home / 725,856.50-1,001,681.97-407,904.50

Finding the Fourth Proportional to 725,856.50, 1,001,681.97 and 407,904.50

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Solution

The fourth proportional to 725,856.50, 1,001,681.97 and 407,904.50 is: 562,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,856.50 : 1,001,681.97 = 407,904.50 : x
  2. Step 2: Convert to fraction form
    725,856.50/1,001,681.97 = 407,904.50/x
  3. Step 3: Cross multiply
    725,856.50x = 1,001,681.97 × 407,904.50
  4. Step 4: Simplify right side
    725,856.50x = 408,590,583,131.87
  5. Step 5: Solve for x
    x = 408,590,583,131.87/725,856.50
  6. Step 6: Final answer
    x = 562,908.21

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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.