Home / 782,255.42-1,173,720.32-422,354.84

Finding the Fourth Proportional to 782,255.42, 1,173,720.32 and 422,354.84

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Solution

The fourth proportional to 782,255.42, 1,173,720.32 and 422,354.84 is: 633,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,255.42 : 1,173,720.32 = 422,354.84 : x
  2. Step 2: Convert to fraction form
    782,255.42/1,173,720.32 = 422,354.84/x
  3. Step 3: Cross multiply
    782,255.42x = 1,173,720.32 × 422,354.84
  4. Step 4: Simplify right side
    782,255.42x = 495,726,457,547.09
  5. Step 5: Solve for x
    x = 495,726,457,547.09/782,255.42
  6. Step 6: Final answer
    x = 633,714.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.