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Finding the Fourth Proportional to 636,009.60, 892,775.40 and 636,009.60

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Solution

The fourth proportional to 636,009.60, 892,775.40 and 636,009.60 is: 892,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,009.60 : 892,775.40 = 636,009.60 : x
  2. Step 2: Convert to fraction form
    636,009.60/892,775.40 = 636,009.60/x
  3. Step 3: Cross multiply
    636,009.60x = 892,775.40 × 636,009.60
  4. Step 4: Simplify right side
    636,009.60x = 567,813,725,043.84
  5. Step 5: Solve for x
    x = 567,813,725,043.84/636,009.60
  6. Step 6: Final answer
    x = 892,775.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.