Home / 717,749.20-1,076,623.80-291,284.20

Finding the Fourth Proportional to 717,749.20, 1,076,623.80 and 291,284.20

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Solution

The fourth proportional to 717,749.20, 1,076,623.80 and 291,284.20 is: 436,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,749.20 : 1,076,623.80 = 291,284.20 : x
  2. Step 2: Convert to fraction form
    717,749.20/1,076,623.80 = 291,284.20/x
  3. Step 3: Cross multiply
    717,749.20x = 1,076,623.80 × 291,284.20
  4. Step 4: Simplify right side
    717,749.20x = 313,603,502,283.96
  5. Step 5: Solve for x
    x = 313,603,502,283.96/717,749.20
  6. Step 6: Final answer
    x = 436,926.30

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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.