Home / 762,641.21-1,052,445.20-423,109.46

Finding the Fourth Proportional to 762,641.21, 1,052,445.20 and 423,109.46

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Solution

The fourth proportional to 762,641.21, 1,052,445.20 and 423,109.46 is: 583,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,641.21 : 1,052,445.20 = 423,109.46 : x
  2. Step 2: Convert to fraction form
    762,641.21/1,052,445.20 = 423,109.46/x
  3. Step 3: Cross multiply
    762,641.21x = 1,052,445.20 × 423,109.46
  4. Step 4: Simplify right side
    762,641.21x = 445,299,512,873.82
  5. Step 5: Solve for x
    x = 445,299,512,873.82/762,641.21
  6. Step 6: Final answer
    x = 583,891.23

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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.