Home / 1,490,647.04-2,235,656.52-479,859.20

Finding the Fourth Proportional to 1,490,647.04, 2,235,656.52 and 479,859.20

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Solution

The fourth proportional to 1,490,647.04, 2,235,656.52 and 479,859.20 is: 719,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,647.04 : 2,235,656.52 = 479,859.20 : x
  2. Step 2: Convert to fraction form
    1,490,647.04/2,235,656.52 = 479,859.20/x
  3. Step 3: Cross multiply
    1,490,647.04x = 2,235,656.52 × 479,859.20
  4. Step 4: Simplify right side
    1,490,647.04x = 1,072,800,349,161.98
  5. Step 5: Solve for x
    x = 1,072,800,349,161.98/1,490,647.04
  6. Step 6: Final answer
    x = 719,687.71

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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.