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Finding the Fourth Proportional to 907,374.88, 1,361,062.36 and 338,800.32

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Solution

The fourth proportional to 907,374.88, 1,361,062.36 and 338,800.32 is: 508,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,374.88 : 1,361,062.36 = 338,800.32 : x
  2. Step 2: Convert to fraction form
    907,374.88/1,361,062.36 = 338,800.32/x
  3. Step 3: Cross multiply
    907,374.88x = 1,361,062.36 × 338,800.32
  4. Step 4: Simplify right side
    907,374.88x = 461,128,363,107.96
  5. Step 5: Solve for x
    x = 461,128,363,107.96/907,374.88
  6. Step 6: Final answer
    x = 508,200.49

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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.