Home / 1,243,646.65-1,865,261.30-345,179.67

Finding the Fourth Proportional to 1,243,646.65, 1,865,261.30 and 345,179.67

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Solution

The fourth proportional to 1,243,646.65, 1,865,261.30 and 345,179.67 is: 517,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,646.65 : 1,865,261.30 = 345,179.67 : x
  2. Step 2: Convert to fraction form
    1,243,646.65/1,865,261.30 = 345,179.67/x
  3. Step 3: Cross multiply
    1,243,646.65x = 1,865,261.30 × 345,179.67
  4. Step 4: Simplify right side
    1,243,646.65x = 643,850,279,997.77
  5. Step 5: Solve for x
    x = 643,850,279,997.77/1,243,646.65
  6. Step 6: Final answer
    x = 517,711.59

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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.