Home / 920,468.52-1,269,159.60-630,220.80

Finding the Fourth Proportional to 920,468.52, 1,269,159.60 and 630,220.80

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Solution

The fourth proportional to 920,468.52, 1,269,159.60 and 630,220.80 is: 868,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,468.52 : 1,269,159.60 = 630,220.80 : x
  2. Step 2: Convert to fraction form
    920,468.52/1,269,159.60 = 630,220.80/x
  3. Step 3: Cross multiply
    920,468.52x = 1,269,159.60 × 630,220.80
  4. Step 4: Simplify right side
    920,468.52x = 799,850,778,439.68
  5. Step 5: Solve for x
    x = 799,850,778,439.68/920,468.52
  6. Step 6: Final answer
    x = 868,960.49

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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.