Home / 840,905.10-1,260,607.68-308,302.02

Finding the Fourth Proportional to 840,905.10, 1,260,607.68 and 308,302.02

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Solution

The fourth proportional to 840,905.10, 1,260,607.68 and 308,302.02 is: 462,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,905.10 : 1,260,607.68 = 308,302.02 : x
  2. Step 2: Convert to fraction form
    840,905.10/1,260,607.68 = 308,302.02/x
  3. Step 3: Cross multiply
    840,905.10x = 1,260,607.68 × 308,302.02
  4. Step 4: Simplify right side
    840,905.10x = 388,647,894,171.51
  5. Step 5: Solve for x
    x = 388,647,894,171.51/840,905.10
  6. Step 6: Final answer
    x = 462,178.07

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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.