Home / 631,288.20-946,125.90-256,888.20

Finding the Fourth Proportional to 631,288.20, 946,125.90 and 256,888.20

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Solution

The fourth proportional to 631,288.20, 946,125.90 and 256,888.20 is: 385,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,288.20 : 946,125.90 = 256,888.20 : x
  2. Step 2: Convert to fraction form
    631,288.20/946,125.90 = 256,888.20/x
  3. Step 3: Cross multiply
    631,288.20x = 946,125.90 × 256,888.20
  4. Step 4: Simplify right side
    631,288.20x = 243,048,579,424.38
  5. Step 5: Solve for x
    x = 243,048,579,424.38/631,288.20
  6. Step 6: Final answer
    x = 385,004.15

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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.