Home / 725,628.30-1,088,114.40-326,063.40

Finding the Fourth Proportional to 725,628.30, 1,088,114.40 and 326,063.40

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Solution

The fourth proportional to 725,628.30, 1,088,114.40 and 326,063.40 is: 488,947.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,628.30 : 1,088,114.40 = 326,063.40 : x
  2. Step 2: Convert to fraction form
    725,628.30/1,088,114.40 = 326,063.40/x
  3. Step 3: Cross multiply
    725,628.30x = 1,088,114.40 × 326,063.40
  4. Step 4: Simplify right side
    725,628.30x = 354,794,280,852.96
  5. Step 5: Solve for x
    x = 354,794,280,852.96/725,628.30
  6. Step 6: Final answer
    x = 488,947.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.