Home / 761,996.47-1,142,194.60-256,381.91

Finding the Fourth Proportional to 761,996.47, 1,142,194.60 and 256,381.91

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Solution

The fourth proportional to 761,996.47, 1,142,194.60 and 256,381.91 is: 384,303.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,996.47 : 1,142,194.60 = 256,381.91 : x
  2. Step 2: Convert to fraction form
    761,996.47/1,142,194.60 = 256,381.91/x
  3. Step 3: Cross multiply
    761,996.47x = 1,142,194.60 × 256,381.91
  4. Step 4: Simplify right side
    761,996.47x = 292,838,037,015.12
  5. Step 5: Solve for x
    x = 292,838,037,015.12/761,996.47
  6. Step 6: Final answer
    x = 384,303.67

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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.