Home / 743,313.60-1,114,970.40-270,014.40

Finding the Fourth Proportional to 743,313.60, 1,114,970.40 and 270,014.40

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Solution

The fourth proportional to 743,313.60, 1,114,970.40 and 270,014.40 is: 405,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,313.60 : 1,114,970.40 = 270,014.40 : x
  2. Step 2: Convert to fraction form
    743,313.60/1,114,970.40 = 270,014.40/x
  3. Step 3: Cross multiply
    743,313.60x = 1,114,970.40 × 270,014.40
  4. Step 4: Simplify right side
    743,313.60x = 301,058,063,573.76
  5. Step 5: Solve for x
    x = 301,058,063,573.76/743,313.60
  6. Step 6: Final answer
    x = 405,021.60

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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.