Home / 811,762.96-1,217,652.66-362,506.72

Finding the Fourth Proportional to 811,762.96, 1,217,652.66 and 362,506.72

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Solution

The fourth proportional to 811,762.96, 1,217,652.66 and 362,506.72 is: 543,763.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,762.96 : 1,217,652.66 = 362,506.72 : x
  2. Step 2: Convert to fraction form
    811,762.96/1,217,652.66 = 362,506.72/x
  3. Step 3: Cross multiply
    811,762.96x = 1,217,652.66 × 362,506.72
  4. Step 4: Simplify right side
    811,762.96x = 441,407,271,875.88
  5. Step 5: Solve for x
    x = 441,407,271,875.88/811,762.96
  6. Step 6: Final answer
    x = 543,763.75

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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.