Home / 1,327,041.03-1,990,950.35-428,465.91

Finding the Fourth Proportional to 1,327,041.03, 1,990,950.35 and 428,465.91

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Solution

The fourth proportional to 1,327,041.03, 1,990,950.35 and 428,465.91 is: 642,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,041.03 : 1,990,950.35 = 428,465.91 : x
  2. Step 2: Convert to fraction form
    1,327,041.03/1,990,950.35 = 428,465.91/x
  3. Step 3: Cross multiply
    1,327,041.03x = 1,990,950.35 × 428,465.91
  4. Step 4: Simplify right side
    1,327,041.03x = 853,054,351,335.24
  5. Step 5: Solve for x
    x = 853,054,351,335.24/1,327,041.03
  6. Step 6: Final answer
    x = 642,824.40

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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.