Home / 3,138,304.90-4,707,457.36-863,824.90

Finding the Fourth Proportional to 3,138,304.90, 4,707,457.36 and 863,824.90

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Solution

The fourth proportional to 3,138,304.90, 4,707,457.36 and 863,824.90 is: 1,295,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,304.90 : 4,707,457.36 = 863,824.90 : x
  2. Step 2: Convert to fraction form
    3,138,304.90/4,707,457.36 = 863,824.90/x
  3. Step 3: Cross multiply
    3,138,304.90x = 4,707,457.36 × 863,824.90
  4. Step 4: Simplify right side
    3,138,304.90x = 4,066,418,883,256.26
  5. Step 5: Solve for x
    x = 4,066,418,883,256.26/3,138,304.90
  6. Step 6: Final answer
    x = 1,295,737.35

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Double scale
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Similar ratio
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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.