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Finding the Fourth Proportional to 691,152.92, 953,675.50 and 385,162.26

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Solution

The fourth proportional to 691,152.92, 953,675.50 and 385,162.26 is: 531,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,152.92 : 953,675.50 = 385,162.26 : x
  2. Step 2: Convert to fraction form
    691,152.92/953,675.50 = 385,162.26/x
  3. Step 3: Cross multiply
    691,152.92x = 953,675.50 × 385,162.26
  4. Step 4: Simplify right side
    691,152.92x = 367,319,810,886.63
  5. Step 5: Solve for x
    x = 367,319,810,886.63/691,152.92
  6. Step 6: Final answer
    x = 531,459.54

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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.