Home / 457,127.75-630,838.10-266,272.31

Finding the Fourth Proportional to 457,127.75, 630,838.10 and 266,272.31

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Solution

The fourth proportional to 457,127.75, 630,838.10 and 266,272.31 is: 367,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,127.75 : 630,838.10 = 266,272.31 : x
  2. Step 2: Convert to fraction form
    457,127.75/630,838.10 = 266,272.31/x
  3. Step 3: Cross multiply
    457,127.75x = 630,838.10 × 266,272.31
  4. Step 4: Simplify right side
    457,127.75x = 167,974,718,123.01
  5. Step 5: Solve for x
    x = 167,974,718,123.01/457,127.75
  6. Step 6: Final answer
    x = 367,456.84

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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.