Home / 918,212.55-1,377,318.83-385,556.55

Finding the Fourth Proportional to 918,212.55, 1,377,318.83 and 385,556.55

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Solution

The fourth proportional to 918,212.55, 1,377,318.83 and 385,556.55 is: 578,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,212.55 : 1,377,318.83 = 385,556.55 : x
  2. Step 2: Convert to fraction form
    918,212.55/1,377,318.83 = 385,556.55/x
  3. Step 3: Cross multiply
    918,212.55x = 1,377,318.83 × 385,556.55
  4. Step 4: Simplify right side
    918,212.55x = 531,034,294,417.05
  5. Step 5: Solve for x
    x = 531,034,294,417.05/918,212.55
  6. Step 6: Final answer
    x = 578,334.83

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1.5x scale

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.