Home / 630,869.13-945,598.30-331,381.35

Finding the Fourth Proportional to 630,869.13, 945,598.30 and 331,381.35

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Solution

The fourth proportional to 630,869.13, 945,598.30 and 331,381.35 is: 496,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,869.13 : 945,598.30 = 331,381.35 : x
  2. Step 2: Convert to fraction form
    630,869.13/945,598.30 = 331,381.35/x
  3. Step 3: Cross multiply
    630,869.13x = 945,598.30 × 331,381.35
  4. Step 4: Simplify right side
    630,869.13x = 313,353,640,383.25
  5. Step 5: Solve for x
    x = 313,353,640,383.25/630,869.13
  6. Step 6: Final answer
    x = 496,701.50

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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.