Home / 460,848.30-691,272.45-128,424.30

Finding the Fourth Proportional to 460,848.30, 691,272.45 and 128,424.30

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Solution

The fourth proportional to 460,848.30, 691,272.45 and 128,424.30 is: 192,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,848.30 : 691,272.45 = 128,424.30 : x
  2. Step 2: Convert to fraction form
    460,848.30/691,272.45 = 128,424.30/x
  3. Step 3: Cross multiply
    460,848.30x = 691,272.45 × 128,424.30
  4. Step 4: Simplify right side
    460,848.30x = 88,776,180,500.54
  5. Step 5: Solve for x
    x = 88,776,180,500.54/460,848.30
  6. Step 6: Final answer
    x = 192,636.45

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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.