Home / 769,428.01-1,154,165.44-263,981.90

Finding the Fourth Proportional to 769,428.01, 1,154,165.44 and 263,981.90

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Solution

The fourth proportional to 769,428.01, 1,154,165.44 and 263,981.90 is: 395,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,428.01 : 1,154,165.44 = 263,981.90 : x
  2. Step 2: Convert to fraction form
    769,428.01/1,154,165.44 = 263,981.90/x
  3. Step 3: Cross multiply
    769,428.01x = 1,154,165.44 × 263,981.90
  4. Step 4: Simplify right side
    769,428.01x = 304,678,779,994.71
  5. Step 5: Solve for x
    x = 304,678,779,994.71/769,428.01
  6. Step 6: Final answer
    x = 395,980.88

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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.