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Finding the Fourth Proportional to 540,495.40, 810,062.70 and 274,329.40

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Solution

The fourth proportional to 540,495.40, 810,062.70 and 274,329.40 is: 411,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,495.40 : 810,062.70 = 274,329.40 : x
  2. Step 2: Convert to fraction form
    540,495.40/810,062.70 = 274,329.40/x
  3. Step 3: Cross multiply
    540,495.40x = 810,062.70 × 274,329.40
  4. Step 4: Simplify right side
    540,495.40x = 222,224,014,453.38
  5. Step 5: Solve for x
    x = 222,224,014,453.38/540,495.40
  6. Step 6: Final answer
    x = 411,148.76

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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.