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Finding the Fourth Proportional to 674,058.96, 928,619.10 and 469,738.44

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Solution

The fourth proportional to 674,058.96, 928,619.10 and 469,738.44 is: 647,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,058.96 : 928,619.10 = 469,738.44 : x
  2. Step 2: Convert to fraction form
    674,058.96/928,619.10 = 469,738.44/x
  3. Step 3: Cross multiply
    674,058.96x = 928,619.10 × 469,738.44
  4. Step 4: Simplify right side
    674,058.96x = 436,208,087,388.20
  5. Step 5: Solve for x
    x = 436,208,087,388.20/674,058.96
  6. Step 6: Final answer
    x = 647,136.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.