Home / 727,213.87-1,090,895.45-278,312.35

Finding the Fourth Proportional to 727,213.87, 1,090,895.45 and 278,312.35

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Solution

The fourth proportional to 727,213.87, 1,090,895.45 and 278,312.35 is: 417,497.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,213.87 : 1,090,895.45 = 278,312.35 : x
  2. Step 2: Convert to fraction form
    727,213.87/1,090,895.45 = 278,312.35/x
  3. Step 3: Cross multiply
    727,213.87x = 1,090,895.45 × 278,312.35
  4. Step 4: Simplify right side
    727,213.87x = 303,609,674,902.25
  5. Step 5: Solve for x
    x = 303,609,674,902.25/727,213.87
  6. Step 6: Final answer
    x = 417,497.09

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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.