Home / 791,346.72-1,186,541.64-310,999.68

Finding the Fourth Proportional to 791,346.72, 1,186,541.64 and 310,999.68

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Solution

The fourth proportional to 791,346.72, 1,186,541.64 and 310,999.68 is: 466,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,346.72 : 1,186,541.64 = 310,999.68 : x
  2. Step 2: Convert to fraction form
    791,346.72/1,186,541.64 = 310,999.68/x
  3. Step 3: Cross multiply
    791,346.72x = 1,186,541.64 × 310,999.68
  4. Step 4: Simplify right side
    791,346.72x = 369,014,070,346.68
  5. Step 5: Solve for x
    x = 369,014,070,346.68/791,346.72
  6. Step 6: Final answer
    x = 466,311.49

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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.