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Finding the Fourth Proportional to 540,005.55, 810,516.80 and 273,957

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Solution

The fourth proportional to 540,005.55, 810,516.80 and 273,957 is: 411,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,005.55 : 810,516.80 = 273,957 : x
  2. Step 2: Convert to fraction form
    540,005.55/810,516.80 = 273,957/x
  3. Step 3: Cross multiply
    540,005.55x = 810,516.80 × 273,957
  4. Step 4: Simplify right side
    540,005.55x = 222,046,750,977.60
  5. Step 5: Solve for x
    x = 222,046,750,977.60/540,005.55
  6. Step 6: Final answer
    x = 411,193.46

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1.5x scale

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.