Home / 313,857.02-472,493.40-285,956.30

Finding the Fourth Proportional to 313,857.02, 472,493.40 and 285,956.30

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Solution

The fourth proportional to 313,857.02, 472,493.40 and 285,956.30 is: 430,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,857.02 : 472,493.40 = 285,956.30 : x
  2. Step 2: Convert to fraction form
    313,857.02/472,493.40 = 285,956.30/x
  3. Step 3: Cross multiply
    313,857.02x = 472,493.40 × 285,956.30
  4. Step 4: Simplify right side
    313,857.02x = 135,112,464,438.42
  5. Step 5: Solve for x
    x = 135,112,464,438.42/313,857.02
  6. Step 6: Final answer
    x = 430,490.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.