Home / 761,738.63-1,051,199.46-422,206.88

Finding the Fourth Proportional to 761,738.63, 1,051,199.46 and 422,206.88

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Solution

The fourth proportional to 761,738.63, 1,051,199.46 and 422,206.88 is: 582,645.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,738.63 : 1,051,199.46 = 422,206.88 : x
  2. Step 2: Convert to fraction form
    761,738.63/1,051,199.46 = 422,206.88/x
  3. Step 3: Cross multiply
    761,738.63x = 1,051,199.46 × 422,206.88
  4. Step 4: Simplify right side
    761,738.63x = 443,823,639,008.29
  5. Step 5: Solve for x
    x = 443,823,639,008.29/761,738.63
  6. Step 6: Final answer
    x = 582,645.57

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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.