Home / 725,427.42-1,001,010.35-419,457.50

Finding the Fourth Proportional to 725,427.42, 1,001,010.35 and 419,457.50

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Solution

The fourth proportional to 725,427.42, 1,001,010.35 and 419,457.50 is: 578,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,427.42 : 1,001,010.35 = 419,457.50 : x
  2. Step 2: Convert to fraction form
    725,427.42/1,001,010.35 = 419,457.50/x
  3. Step 3: Cross multiply
    725,427.42x = 1,001,010.35 × 419,457.50
  4. Step 4: Simplify right side
    725,427.42x = 419,881,298,885.13
  5. Step 5: Solve for x
    x = 419,881,298,885.13/725,427.42
  6. Step 6: Final answer
    x = 578,805.39

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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.