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Finding the Fourth Proportional to 610,735.32, 842,816.88 and 338,808.60

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Solution

The fourth proportional to 610,735.32, 842,816.88 and 338,808.60 is: 467,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,735.32 : 842,816.88 = 338,808.60 : x
  2. Step 2: Convert to fraction form
    610,735.32/842,816.88 = 338,808.60/x
  3. Step 3: Cross multiply
    610,735.32x = 842,816.88 × 338,808.60
  4. Step 4: Simplify right side
    610,735.32x = 285,553,607,169.17
  5. Step 5: Solve for x
    x = 285,553,607,169.17/610,735.32
  6. Step 6: Final answer
    x = 467,557.05

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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.