Home / 1,385,455.85-2,078,301.63-486,819.98

Finding the Fourth Proportional to 1,385,455.85, 2,078,301.63 and 486,819.98

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Solution

The fourth proportional to 1,385,455.85, 2,078,301.63 and 486,819.98 is: 730,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,455.85 : 2,078,301.63 = 486,819.98 : x
  2. Step 2: Convert to fraction form
    1,385,455.85/2,078,301.63 = 486,819.98/x
  3. Step 3: Cross multiply
    1,385,455.85x = 2,078,301.63 × 486,819.98
  4. Step 4: Simplify right side
    1,385,455.85x = 1,011,758,757,950.57
  5. Step 5: Solve for x
    x = 1,011,758,757,950.57/1,385,455.85
  6. Step 6: Final answer
    x = 730,271.38

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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.