Home / 918,195.66-1,377,074.70-385,727.04

Finding the Fourth Proportional to 918,195.66, 1,377,074.70 and 385,727.04

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Solution

The fourth proportional to 918,195.66, 1,377,074.70 and 385,727.04 is: 578,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,195.66 : 1,377,074.70 = 385,727.04 : x
  2. Step 2: Convert to fraction form
    918,195.66/1,377,074.70 = 385,727.04/x
  3. Step 3: Cross multiply
    918,195.66x = 1,377,074.70 × 385,727.04
  4. Step 4: Simplify right side
    918,195.66x = 531,174,947,889.89
  5. Step 5: Solve for x
    x = 531,174,947,889.89/918,195.66
  6. Step 6: Final answer
    x = 578,498.65

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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.