Home / 725,861.25-1,001,688.53-407,909.25

Finding the Fourth Proportional to 725,861.25, 1,001,688.53 and 407,909.25

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Solution

The fourth proportional to 725,861.25, 1,001,688.53 and 407,909.25 is: 562,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,861.25 : 1,001,688.53 = 407,909.25 : x
  2. Step 2: Convert to fraction form
    725,861.25/1,001,688.53 = 407,909.25/x
  3. Step 3: Cross multiply
    725,861.25x = 1,001,688.53 × 407,909.25
  4. Step 4: Simplify right side
    725,861.25x = 408,598,014,966.36
  5. Step 5: Solve for x
    x = 408,598,014,966.36/725,861.25
  6. Step 6: Final answer
    x = 562,914.77

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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.