Home / 1,329,430.34-1,993,727.21-430,663.55

Finding the Fourth Proportional to 1,329,430.34, 1,993,727.21 and 430,663.55

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Solution

The fourth proportional to 1,329,430.34, 1,993,727.21 and 430,663.55 is: 645,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,430.34 : 1,993,727.21 = 430,663.55 : x
  2. Step 2: Convert to fraction form
    1,329,430.34/1,993,727.21 = 430,663.55/x
  3. Step 3: Cross multiply
    1,329,430.34x = 1,993,727.21 × 430,663.55
  4. Step 4: Simplify right side
    1,329,430.34x = 858,625,625,868.24
  5. Step 5: Solve for x
    x = 858,625,625,868.24/1,329,430.34
  6. Step 6: Final answer
    x = 645,859.81

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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.