Home / 3,180,731.54-4,771,074.83-1,287,445.64

Finding the Fourth Proportional to 3,180,731.54, 4,771,074.83 and 1,287,445.64

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Solution

The fourth proportional to 3,180,731.54, 4,771,074.83 and 1,287,445.64 is: 1,931,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180,731.54 : 4,771,074.83 = 1,287,445.64 : x
  2. Step 2: Convert to fraction form
    3,180,731.54/4,771,074.83 = 1,287,445.64/x
  3. Step 3: Cross multiply
    3,180,731.54x = 4,771,074.83 × 1,287,445.64
  4. Step 4: Simplify right side
    3,180,731.54x = 6,142,499,457,704.64
  5. Step 5: Solve for x
    x = 6,142,499,457,704.64/3,180,731.54
  6. Step 6: Final answer
    x = 1,931,159.35

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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.