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Finding the Fourth Proportional to 612,881.82, 845,431.23 and 367,803.90

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Solution

The fourth proportional to 612,881.82, 845,431.23 and 367,803.90 is: 507,361.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,881.82 : 845,431.23 = 367,803.90 : x
  2. Step 2: Convert to fraction form
    612,881.82/845,431.23 = 367,803.90/x
  3. Step 3: Cross multiply
    612,881.82x = 845,431.23 × 367,803.90
  4. Step 4: Simplify right side
    612,881.82x = 310,952,903,575.80
  5. Step 5: Solve for x
    x = 310,952,903,575.80/612,881.82
  6. Step 6: Final answer
    x = 507,361.93

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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.