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Finding the Fourth Proportional to 610,305.60, 842,271.60 and 338,458.88

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Solution

The fourth proportional to 610,305.60, 842,271.60 and 338,458.88 is: 467,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,305.60 : 842,271.60 = 338,458.88 : x
  2. Step 2: Convert to fraction form
    610,305.60/842,271.60 = 338,458.88/x
  3. Step 3: Cross multiply
    610,305.60x = 842,271.60 × 338,458.88
  4. Step 4: Simplify right side
    610,305.60x = 285,074,302,391.81
  5. Step 5: Solve for x
    x = 285,074,302,391.81/610,305.60
  6. Step 6: Final answer
    x = 467,100.91

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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.