Home / 725,124.81-1,000,698.38-419,297.16

Finding the Fourth Proportional to 725,124.81, 1,000,698.38 and 419,297.16

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Solution

The fourth proportional to 725,124.81, 1,000,698.38 and 419,297.16 is: 578,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,124.81 : 1,000,698.38 = 419,297.16 : x
  2. Step 2: Convert to fraction form
    725,124.81/1,000,698.38 = 419,297.16/x
  3. Step 3: Cross multiply
    725,124.81x = 1,000,698.38 × 419,297.16
  4. Step 4: Simplify right side
    725,124.81x = 419,589,988,750.60
  5. Step 5: Solve for x
    x = 419,589,988,750.60/725,124.81
  6. Step 6: Final answer
    x = 578,645.20

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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.