Home / 460,848.80-691,273.20-128,424.80

Finding the Fourth Proportional to 460,848.80, 691,273.20 and 128,424.80

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Solution

The fourth proportional to 460,848.80, 691,273.20 and 128,424.80 is: 192,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,848.80 : 691,273.20 = 128,424.80 : x
  2. Step 2: Convert to fraction form
    460,848.80/691,273.20 = 128,424.80/x
  3. Step 3: Cross multiply
    460,848.80x = 691,273.20 × 128,424.80
  4. Step 4: Simplify right side
    460,848.80x = 88,776,622,455.36
  5. Step 5: Solve for x
    x = 88,776,622,455.36/460,848.80
  6. Step 6: Final answer
    x = 192,637.20

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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.