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Finding the Fourth Proportional to 612,528.74, 845,222 and 367,500.50

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Solution

The fourth proportional to 612,528.74, 845,222 and 367,500.50 is: 507,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,528.74 : 845,222 = 367,500.50 : x
  2. Step 2: Convert to fraction form
    612,528.74/845,222 = 367,500.50/x
  3. Step 3: Cross multiply
    612,528.74x = 845,222 × 367,500.50
  4. Step 4: Simplify right side
    612,528.74x = 310,619,507,611
  5. Step 5: Solve for x
    x = 310,619,507,611/612,528.74
  6. Step 6: Final answer
    x = 507,110.10

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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.