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Finding the Fourth Proportional to 374,462.40, 561,110.40 and 324,307.20

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Solution

The fourth proportional to 374,462.40, 561,110.40 and 324,307.20 is: 485,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,462.40 : 561,110.40 = 324,307.20 : x
  2. Step 2: Convert to fraction form
    374,462.40/561,110.40 = 324,307.20/x
  3. Step 3: Cross multiply
    374,462.40x = 561,110.40 × 324,307.20
  4. Step 4: Simplify right side
    374,462.40x = 181,972,142,714.88
  5. Step 5: Solve for x
    x = 181,972,142,714.88/374,462.40
  6. Step 6: Final answer
    x = 485,955.71

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1.5x scale

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.