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Finding the Fourth Proportional to 520,200.80, 779,134.80 and 450,216.80

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Solution

The fourth proportional to 520,200.80, 779,134.80 and 450,216.80 is: 674,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,200.80 : 779,134.80 = 450,216.80 : x
  2. Step 2: Convert to fraction form
    520,200.80/779,134.80 = 450,216.80/x
  3. Step 3: Cross multiply
    520,200.80x = 779,134.80 × 450,216.80
  4. Step 4: Simplify right side
    520,200.80x = 350,779,576,424.64
  5. Step 5: Solve for x
    x = 350,779,576,424.64/520,200.80
  6. Step 6: Final answer
    x = 674,315.72

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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.