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Finding the Fourth Proportional to 520,427.99, 779,429.45 and 506,062.47

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Solution

The fourth proportional to 520,427.99, 779,429.45 and 506,062.47 is: 757,914.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,427.99 : 779,429.45 = 506,062.47 : x
  2. Step 2: Convert to fraction form
    520,427.99/779,429.45 = 506,062.47/x
  3. Step 3: Cross multiply
    520,427.99x = 779,429.45 × 506,062.47
  4. Step 4: Simplify right side
    520,427.99x = 394,439,992,657.74
  5. Step 5: Solve for x
    x = 394,439,992,657.74/520,427.99
  6. Step 6: Final answer
    x = 757,914.64

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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.