Home / 777,254.90-1,072,613.93-450,631.38

Finding the Fourth Proportional to 777,254.90, 1,072,613.93 and 450,631.38

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Solution

The fourth proportional to 777,254.90, 1,072,613.93 and 450,631.38 is: 621,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,254.90 : 1,072,613.93 = 450,631.38 : x
  2. Step 2: Convert to fraction form
    777,254.90/1,072,613.93 = 450,631.38/x
  3. Step 3: Cross multiply
    777,254.90x = 1,072,613.93 × 450,631.38
  4. Step 4: Simplify right side
    777,254.90x = 483,353,493,753.62
  5. Step 5: Solve for x
    x = 483,353,493,753.62/777,254.90
  6. Step 6: Final answer
    x = 621,872.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.