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Finding the Fourth Proportional to 540,675.19, 746,099.71 and 298,938.79

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Solution

The fourth proportional to 540,675.19, 746,099.71 and 298,938.79 is: 412,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,675.19 : 746,099.71 = 298,938.79 : x
  2. Step 2: Convert to fraction form
    540,675.19/746,099.71 = 298,938.79/x
  3. Step 3: Cross multiply
    540,675.19x = 746,099.71 × 298,938.79
  4. Step 4: Simplify right side
    540,675.19x = 223,038,144,526.75
  5. Step 5: Solve for x
    x = 223,038,144,526.75/540,675.19
  6. Step 6: Final answer
    x = 412,517.81

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1.5x scale

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.