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Finding the Fourth Proportional to 530,539.70, 795,809.55 and 520,042.10

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Solution

The fourth proportional to 530,539.70, 795,809.55 and 520,042.10 is: 780,063.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,539.70 : 795,809.55 = 520,042.10 : x
  2. Step 2: Convert to fraction form
    530,539.70/795,809.55 = 520,042.10/x
  3. Step 3: Cross multiply
    530,539.70x = 795,809.55 × 520,042.10
  4. Step 4: Simplify right side
    530,539.70x = 413,854,469,582.06
  5. Step 5: Solve for x
    x = 413,854,469,582.06/530,539.70
  6. Step 6: Final answer
    x = 780,063.15

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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.