Home / 725,259.40-1,000,799.46-419,355.40

Finding the Fourth Proportional to 725,259.40, 1,000,799.46 and 419,355.40

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Solution

The fourth proportional to 725,259.40, 1,000,799.46 and 419,355.40 is: 578,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,259.40 : 1,000,799.46 = 419,355.40 : x
  2. Step 2: Convert to fraction form
    725,259.40/1,000,799.46 = 419,355.40/x
  3. Step 3: Cross multiply
    725,259.40x = 1,000,799.46 × 419,355.40
  4. Step 4: Simplify right side
    725,259.40x = 419,690,657,868.08
  5. Step 5: Solve for x
    x = 419,690,657,868.08/725,259.40
  6. Step 6: Final answer
    x = 578,676.62

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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.