Home / 790,172.76-1,090,090.90-463,318.92

Finding the Fourth Proportional to 790,172.76, 1,090,090.90 and 463,318.92

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Solution

The fourth proportional to 790,172.76, 1,090,090.90 and 463,318.92 is: 639,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,172.76 : 1,090,090.90 = 463,318.92 : x
  2. Step 2: Convert to fraction form
    790,172.76/1,090,090.90 = 463,318.92/x
  3. Step 3: Cross multiply
    790,172.76x = 1,090,090.90 × 463,318.92
  4. Step 4: Simplify right side
    790,172.76x = 505,059,738,489.83
  5. Step 5: Solve for x
    x = 505,059,738,489.83/790,172.76
  6. Step 6: Final answer
    x = 639,176.35

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Double scale
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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.