Home / 630,927.96-945,604.35-315,475.08

Finding the Fourth Proportional to 630,927.96, 945,604.35 and 315,475.08

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Solution

The fourth proportional to 630,927.96, 945,604.35 and 315,475.08 is: 472,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,927.96 : 945,604.35 = 315,475.08 : x
  2. Step 2: Convert to fraction form
    630,927.96/945,604.35 = 315,475.08/x
  3. Step 3: Cross multiply
    630,927.96x = 945,604.35 × 315,475.08
  4. Step 4: Simplify right side
    630,927.96x = 298,314,607,964.60
  5. Step 5: Solve for x
    x = 298,314,607,964.60/630,927.96
  6. Step 6: Final answer
    x = 472,818.81

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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.