Home / 1,315,421.68-1,973,187.88-416,898.89

Finding the Fourth Proportional to 1,315,421.68, 1,973,187.88 and 416,898.89

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Solution

The fourth proportional to 1,315,421.68, 1,973,187.88 and 416,898.89 is: 625,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,421.68 : 1,973,187.88 = 416,898.89 : x
  2. Step 2: Convert to fraction form
    1,315,421.68/1,973,187.88 = 416,898.89/x
  3. Step 3: Cross multiply
    1,315,421.68x = 1,973,187.88 × 416,898.89
  4. Step 4: Simplify right side
    1,315,421.68x = 822,619,836,933.45
  5. Step 5: Solve for x
    x = 822,619,836,933.45/1,315,421.68
  6. Step 6: Final answer
    x = 625,365.88

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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.