Home / 756,969.40-1,135,429.50-307,557.40

Finding the Fourth Proportional to 756,969.40, 1,135,429.50 and 307,557.40

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Solution

The fourth proportional to 756,969.40, 1,135,429.50 and 307,557.40 is: 461,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,969.40 : 1,135,429.50 = 307,557.40 : x
  2. Step 2: Convert to fraction form
    756,969.40/1,135,429.50 = 307,557.40/x
  3. Step 3: Cross multiply
    756,969.40x = 1,135,429.50 × 307,557.40
  4. Step 4: Simplify right side
    756,969.40x = 349,209,744,903.30
  5. Step 5: Solve for x
    x = 349,209,744,903.30/756,969.40
  6. Step 6: Final answer
    x = 461,326.10

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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.