Home / 743,441.85-1,025,956.98-421,145.06

Finding the Fourth Proportional to 743,441.85, 1,025,956.98 and 421,145.06

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Solution

The fourth proportional to 743,441.85, 1,025,956.98 and 421,145.06 is: 581,184.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,441.85 : 1,025,956.98 = 421,145.06 : x
  2. Step 2: Convert to fraction form
    743,441.85/1,025,956.98 = 421,145.06/x
  3. Step 3: Cross multiply
    743,441.85x = 1,025,956.98 × 421,145.06
  4. Step 4: Simplify right side
    743,441.85x = 432,076,708,769.73
  5. Step 5: Solve for x
    x = 432,076,708,769.73/743,441.85
  6. Step 6: Final answer
    x = 581,184.27

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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.