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Finding the Fourth Proportional to 623,678.89, 860,612.60 and 460,422.23

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Solution

The fourth proportional to 623,678.89, 860,612.60 and 460,422.23 is: 635,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,678.89 : 860,612.60 = 460,422.23 : x
  2. Step 2: Convert to fraction form
    623,678.89/860,612.60 = 460,422.23/x
  3. Step 3: Cross multiply
    623,678.89x = 860,612.60 × 460,422.23
  4. Step 4: Simplify right side
    623,678.89x = 396,245,166,716.22
  5. Step 5: Solve for x
    x = 396,245,166,716.22/623,678.89
  6. Step 6: Final answer
    x = 635,335.22

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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.