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Finding the Fourth Proportional to 540,505.69, 810,125.15 and 220,457.77

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Solution

The fourth proportional to 540,505.69, 810,125.15 and 220,457.77 is: 330,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,505.69 : 810,125.15 = 220,457.77 : x
  2. Step 2: Convert to fraction form
    540,505.69/810,125.15 = 220,457.77/x
  3. Step 3: Cross multiply
    540,505.69x = 810,125.15 × 220,457.77
  4. Step 4: Simplify right side
    540,505.69x = 178,598,380,862.31
  5. Step 5: Solve for x
    x = 178,598,380,862.31/540,505.69
  6. Step 6: Final answer
    x = 330,428.31

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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.