Home / 761,764.15-1,142,795.58-281,995.64

Finding the Fourth Proportional to 761,764.15, 1,142,795.58 and 281,995.64

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Solution

The fourth proportional to 761,764.15, 1,142,795.58 and 281,995.64 is: 423,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,764.15 : 1,142,795.58 = 281,995.64 : x
  2. Step 2: Convert to fraction form
    761,764.15/1,142,795.58 = 281,995.64/x
  3. Step 3: Cross multiply
    761,764.15x = 1,142,795.58 × 281,995.64
  4. Step 4: Simplify right side
    761,764.15x = 322,263,370,971.27
  5. Step 5: Solve for x
    x = 322,263,370,971.27/761,764.15
  6. Step 6: Final answer
    x = 423,048.75

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Half scale
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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.