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Finding the Fourth Proportional to 631,799.04, 871,852.59 and 345,319.38

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Solution

The fourth proportional to 631,799.04, 871,852.59 and 345,319.38 is: 476,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,799.04 : 871,852.59 = 345,319.38 : x
  2. Step 2: Convert to fraction form
    631,799.04/871,852.59 = 345,319.38/x
  3. Step 3: Cross multiply
    631,799.04x = 871,852.59 × 345,319.38
  4. Step 4: Simplify right side
    631,799.04x = 301,067,595,830.19
  5. Step 5: Solve for x
    x = 301,067,595,830.19/631,799.04
  6. Step 6: Final answer
    x = 476,524.30

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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.