Home / 3,120,513.30-4,681,029.15-990,537.30

Finding the Fourth Proportional to 3,120,513.30, 4,681,029.15 and 990,537.30

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Solution

The fourth proportional to 3,120,513.30, 4,681,029.15 and 990,537.30 is: 1,485,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,513.30 : 4,681,029.15 = 990,537.30 : x
  2. Step 2: Convert to fraction form
    3,120,513.30/4,681,029.15 = 990,537.30/x
  3. Step 3: Cross multiply
    3,120,513.30x = 4,681,029.15 × 990,537.30
  4. Step 4: Simplify right side
    3,120,513.30x = 4,636,733,975,462.30
  5. Step 5: Solve for x
    x = 4,636,733,975,462.30/3,120,513.30
  6. Step 6: Final answer
    x = 1,485,888.23

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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.