Home / 814,518.96-1,221,728.40-365,118.96

Finding the Fourth Proportional to 814,518.96, 1,221,728.40 and 365,118.96

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Solution

The fourth proportional to 814,518.96, 1,221,728.40 and 365,118.96 is: 547,656.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,518.96 : 1,221,728.40 = 365,118.96 : x
  2. Step 2: Convert to fraction form
    814,518.96/1,221,728.40 = 365,118.96/x
  3. Step 3: Cross multiply
    814,518.96x = 1,221,728.40 × 365,118.96
  4. Step 4: Simplify right side
    814,518.96x = 446,076,202,810.46
  5. Step 5: Solve for x
    x = 446,076,202,810.46/814,518.96
  6. Step 6: Final answer
    x = 547,656.01

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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.