Home / 1,420,465.30-1,960,209.89-775,888.36

Finding the Fourth Proportional to 1,420,465.30, 1,960,209.89 and 775,888.36

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Solution

The fourth proportional to 1,420,465.30, 1,960,209.89 and 775,888.36 is: 1,070,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,465.30 : 1,960,209.89 = 775,888.36 : x
  2. Step 2: Convert to fraction form
    1,420,465.30/1,960,209.89 = 775,888.36/x
  3. Step 3: Cross multiply
    1,420,465.30x = 1,960,209.89 × 775,888.36
  4. Step 4: Simplify right side
    1,420,465.30x = 1,520,904,030,937.50
  5. Step 5: Solve for x
    x = 1,520,904,030,937.50/1,420,465.30
  6. Step 6: Final answer
    x = 1,070,708.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.