Home / 457,263.28-631,242.12-304,555.60

Finding the Fourth Proportional to 457,263.28, 631,242.12 and 304,555.60

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Solution

The fourth proportional to 457,263.28, 631,242.12 and 304,555.60 is: 420,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,263.28 : 631,242.12 = 304,555.60 : x
  2. Step 2: Convert to fraction form
    457,263.28/631,242.12 = 304,555.60/x
  3. Step 3: Cross multiply
    457,263.28x = 631,242.12 × 304,555.60
  4. Step 4: Simplify right side
    457,263.28x = 192,248,322,601.87
  5. Step 5: Solve for x
    x = 192,248,322,601.87/457,263.28
  6. Step 6: Final answer
    x = 420,432.45

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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.