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Finding the Fourth Proportional to 540,448.14, 745,715.79 and 339,153.42

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Solution

The fourth proportional to 540,448.14, 745,715.79 and 339,153.42 is: 467,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,448.14 : 745,715.79 = 339,153.42 : x
  2. Step 2: Convert to fraction form
    540,448.14/745,715.79 = 339,153.42/x
  3. Step 3: Cross multiply
    540,448.14x = 745,715.79 × 339,153.42
  4. Step 4: Simplify right side
    540,448.14x = 252,912,060,526.50
  5. Step 5: Solve for x
    x = 252,912,060,526.50/540,448.14
  6. Step 6: Final answer
    x = 467,967.31

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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.