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Finding the Fourth Proportional to 540,065.40, 809,903.70 and 273,737.40

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Solution

The fourth proportional to 540,065.40, 809,903.70 and 273,737.40 is: 410,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,065.40 : 809,903.70 = 273,737.40 : x
  2. Step 2: Convert to fraction form
    540,065.40/809,903.70 = 273,737.40/x
  3. Step 3: Cross multiply
    540,065.40x = 809,903.70 × 273,737.40
  4. Step 4: Simplify right side
    540,065.40x = 221,700,933,088.38
  5. Step 5: Solve for x
    x = 221,700,933,088.38/540,065.40
  6. Step 6: Final answer
    x = 410,507.57

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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.