Home / 761,903.42-1,051,428.20-422,371.67

Finding the Fourth Proportional to 761,903.42, 1,051,428.20 and 422,371.67

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Solution

The fourth proportional to 761,903.42, 1,051,428.20 and 422,371.67 is: 582,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,903.42 : 1,051,428.20 = 422,371.67 : x
  2. Step 2: Convert to fraction form
    761,903.42/1,051,428.20 = 422,371.67/x
  3. Step 3: Cross multiply
    761,903.42x = 1,051,428.20 × 422,371.67
  4. Step 4: Simplify right side
    761,903.42x = 444,093,477,350.10
  5. Step 5: Solve for x
    x = 444,093,477,350.10/761,903.42
  6. Step 6: Final answer
    x = 582,873.72

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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.