Home / 725,125.81-1,000,699.76-419,298.16

Finding the Fourth Proportional to 725,125.81, 1,000,699.76 and 419,298.16

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Solution

The fourth proportional to 725,125.81, 1,000,699.76 and 419,298.16 is: 578,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,125.81 : 1,000,699.76 = 419,298.16 : x
  2. Step 2: Convert to fraction form
    725,125.81/1,000,699.76 = 419,298.16/x
  3. Step 3: Cross multiply
    725,125.81x = 1,000,699.76 × 419,298.16
  4. Step 4: Simplify right side
    725,125.81x = 419,591,568,080.44
  5. Step 5: Solve for x
    x = 419,591,568,080.44/725,125.81
  6. Step 6: Final answer
    x = 578,646.58

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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.