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Finding the Fourth Proportional to 630,672.30, 946,008.45 and 256,502.70

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Solution

The fourth proportional to 630,672.30, 946,008.45 and 256,502.70 is: 384,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,672.30 : 946,008.45 = 256,502.70 : x
  2. Step 2: Convert to fraction form
    630,672.30/946,008.45 = 256,502.70/x
  3. Step 3: Cross multiply
    630,672.30x = 946,008.45 × 256,502.70
  4. Step 4: Simplify right side
    630,672.30x = 242,653,721,647.82
  5. Step 5: Solve for x
    x = 242,653,721,647.82/630,672.30
  6. Step 6: Final answer
    x = 384,754.05

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Similar ratio
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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.