Home / 814,210.17-1,220,987.07-245,415.21

Finding the Fourth Proportional to 814,210.17, 1,220,987.07 and 245,415.21

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Solution

The fourth proportional to 814,210.17, 1,220,987.07 and 245,415.21 is: 368,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,210.17 : 1,220,987.07 = 245,415.21 : x
  2. Step 2: Convert to fraction form
    814,210.17/1,220,987.07 = 245,415.21/x
  3. Step 3: Cross multiply
    814,210.17x = 1,220,987.07 × 245,415.21
  4. Step 4: Simplify right side
    814,210.17x = 299,648,798,191.34
  5. Step 5: Solve for x
    x = 299,648,798,191.34/814,210.17
  6. Step 6: Final answer
    x = 368,023.90

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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.