Home / 630,427.20-945,122.40-334,939.20

Finding the Fourth Proportional to 630,427.20, 945,122.40 and 334,939.20

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Solution

The fourth proportional to 630,427.20, 945,122.40 and 334,939.20 is: 502,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,427.20 : 945,122.40 = 334,939.20 : x
  2. Step 2: Convert to fraction form
    630,427.20/945,122.40 = 334,939.20/x
  3. Step 3: Cross multiply
    630,427.20x = 945,122.40 × 334,939.20
  4. Step 4: Simplify right side
    630,427.20x = 316,558,540,558.08
  5. Step 5: Solve for x
    x = 316,558,540,558.08/630,427.20
  6. Step 6: Final answer
    x = 502,133.38

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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.