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Finding the Fourth Proportional to 631,583.64, 871,585.64 and 341,195.32

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Solution

The fourth proportional to 631,583.64, 871,585.64 and 341,195.32 is: 470,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,583.64 : 871,585.64 = 341,195.32 : x
  2. Step 2: Convert to fraction form
    631,583.64/871,585.64 = 341,195.32/x
  3. Step 3: Cross multiply
    631,583.64x = 871,585.64 × 341,195.32
  4. Step 4: Simplify right side
    631,583.64x = 297,380,941,347.21
  5. Step 5: Solve for x
    x = 297,380,941,347.21/631,583.64
  6. Step 6: Final answer
    x = 470,849.66

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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.