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Finding the Fourth Proportional to 611,302.90, 917,645.55 and 362,125.30

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Solution

The fourth proportional to 611,302.90, 917,645.55 and 362,125.30 is: 543,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,302.90 : 917,645.55 = 362,125.30 : x
  2. Step 2: Convert to fraction form
    611,302.90/917,645.55 = 362,125.30/x
  3. Step 3: Cross multiply
    611,302.90x = 917,645.55 × 362,125.30
  4. Step 4: Simplify right side
    611,302.90x = 332,302,670,087.42
  5. Step 5: Solve for x
    x = 332,302,670,087.42/611,302.90
  6. Step 6: Final answer
    x = 543,597.40

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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.