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Finding the Fourth Proportional to 485,600.15, 728,400.23 and 456,051.35

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Solution

The fourth proportional to 485,600.15, 728,400.23 and 456,051.35 is: 684,077.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,600.15 : 728,400.23 = 456,051.35 : x
  2. Step 2: Convert to fraction form
    485,600.15/728,400.23 = 456,051.35/x
  3. Step 3: Cross multiply
    485,600.15x = 728,400.23 × 456,051.35
  4. Step 4: Simplify right side
    485,600.15x = 332,187,905,951.55
  5. Step 5: Solve for x
    x = 332,187,905,951.55/485,600.15
  6. Step 6: Final answer
    x = 684,077.03

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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.