Home / 743,116.06-1,025,563.40-420,883.48

Finding the Fourth Proportional to 743,116.06, 1,025,563.40 and 420,883.48

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Solution

The fourth proportional to 743,116.06, 1,025,563.40 and 420,883.48 is: 580,855.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,116.06 : 1,025,563.40 = 420,883.48 : x
  2. Step 2: Convert to fraction form
    743,116.06/1,025,563.40 = 420,883.48/x
  3. Step 3: Cross multiply
    743,116.06x = 1,025,563.40 × 420,883.48
  4. Step 4: Simplify right side
    743,116.06x = 431,642,688,923.42
  5. Step 5: Solve for x
    x = 431,642,688,923.42/743,116.06
  6. Step 6: Final answer
    x = 580,855.02

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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.