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Finding the Fourth Proportional to 662,435.40, 992,486.70 and 543,462.60

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Solution

The fourth proportional to 662,435.40, 992,486.70 and 543,462.60 is: 814,236.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,435.40 : 992,486.70 = 543,462.60 : x
  2. Step 2: Convert to fraction form
    662,435.40/992,486.70 = 543,462.60/x
  3. Step 3: Cross multiply
    662,435.40x = 992,486.70 × 543,462.60
  4. Step 4: Simplify right side
    662,435.40x = 539,379,402,447.42
  5. Step 5: Solve for x
    x = 539,379,402,447.42/662,435.40
  6. Step 6: Final answer
    x = 814,236.98

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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.