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Finding the Fourth Proportional to 614,720.30, 922,080.45 and 348,999.80

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Solution

The fourth proportional to 614,720.30, 922,080.45 and 348,999.80 is: 523,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,720.30 : 922,080.45 = 348,999.80 : x
  2. Step 2: Convert to fraction form
    614,720.30/922,080.45 = 348,999.80/x
  3. Step 3: Cross multiply
    614,720.30x = 922,080.45 × 348,999.80
  4. Step 4: Simplify right side
    614,720.30x = 321,805,892,633.91
  5. Step 5: Solve for x
    x = 321,805,892,633.91/614,720.30
  6. Step 6: Final answer
    x = 523,499.70

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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.