Home / 686,051.90-1,029,661.05-307,555.10

Finding the Fourth Proportional to 686,051.90, 1,029,661.05 and 307,555.10

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Solution

The fourth proportional to 686,051.90, 1,029,661.05 and 307,555.10 is: 461,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,051.90 : 1,029,661.05 = 307,555.10 : x
  2. Step 2: Convert to fraction form
    686,051.90/1,029,661.05 = 307,555.10/x
  3. Step 3: Cross multiply
    686,051.90x = 1,029,661.05 × 307,555.10
  4. Step 4: Simplify right side
    686,051.90x = 316,677,507,198.86
  5. Step 5: Solve for x
    x = 316,677,507,198.86/686,051.90
  6. Step 6: Final answer
    x = 461,594.10

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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.