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Finding the Fourth Proportional to 535,690.45, 803,535.68 and 417,450.30

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Solution

The fourth proportional to 535,690.45, 803,535.68 and 417,450.30 is: 626,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,690.45 : 803,535.68 = 417,450.30 : x
  2. Step 2: Convert to fraction form
    535,690.45/803,535.68 = 417,450.30/x
  3. Step 3: Cross multiply
    535,690.45x = 803,535.68 × 417,450.30
  4. Step 4: Simplify right side
    535,690.45x = 335,436,210,676.70
  5. Step 5: Solve for x
    x = 335,436,210,676.70/535,690.45
  6. Step 6: Final answer
    x = 626,175.45

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Similar ratio
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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.