Home / 476,719.10-657,930.93-275,515.10

Finding the Fourth Proportional to 476,719.10, 657,930.93 and 275,515.10

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Solution

The fourth proportional to 476,719.10, 657,930.93 and 275,515.10 is: 380,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,719.10 : 657,930.93 = 275,515.10 : x
  2. Step 2: Convert to fraction form
    476,719.10/657,930.93 = 275,515.10/x
  3. Step 3: Cross multiply
    476,719.10x = 657,930.93 × 275,515.10
  4. Step 4: Simplify right side
    476,719.10x = 181,269,905,972.04
  5. Step 5: Solve for x
    x = 181,269,905,972.04/476,719.10
  6. Step 6: Final answer
    x = 380,244.69

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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.