Home / 830,386.20-1,245,579.30-725,410.20

Finding the Fourth Proportional to 830,386.20, 1,245,579.30 and 725,410.20

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Solution

The fourth proportional to 830,386.20, 1,245,579.30 and 725,410.20 is: 1,088,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,386.20 : 1,245,579.30 = 725,410.20 : x
  2. Step 2: Convert to fraction form
    830,386.20/1,245,579.30 = 725,410.20/x
  3. Step 3: Cross multiply
    830,386.20x = 1,245,579.30 × 725,410.20
  4. Step 4: Simplify right side
    830,386.20x = 903,555,929,128.86
  5. Step 5: Solve for x
    x = 903,555,929,128.86/830,386.20
  6. Step 6: Final answer
    x = 1,088,115.30

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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.