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Finding the Fourth Proportional to 637,640.20, 956,460.30 and 637,640.20

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Solution

The fourth proportional to 637,640.20, 956,460.30 and 637,640.20 is: 956,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,640.20 : 956,460.30 = 637,640.20 : x
  2. Step 2: Convert to fraction form
    637,640.20/956,460.30 = 637,640.20/x
  3. Step 3: Cross multiply
    637,640.20x = 956,460.30 × 637,640.20
  4. Step 4: Simplify right side
    637,640.20x = 609,877,536,984.06
  5. Step 5: Solve for x
    x = 609,877,536,984.06/637,640.20
  6. Step 6: Final answer
    x = 956,460.30

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Half scale
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Double scale
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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.