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Finding the Fourth Proportional to 519,562.80, 779,417.10 and 164,539.80

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Solution

The fourth proportional to 519,562.80, 779,417.10 and 164,539.80 is: 246,832.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,562.80 : 779,417.10 = 164,539.80 : x
  2. Step 2: Convert to fraction form
    519,562.80/779,417.10 = 164,539.80/x
  3. Step 3: Cross multiply
    519,562.80x = 779,417.10 × 164,539.80
  4. Step 4: Simplify right side
    519,562.80x = 128,245,133,750.58
  5. Step 5: Solve for x
    x = 128,245,133,750.58/519,562.80
  6. Step 6: Final answer
    x = 246,832.79

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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.